1Math::NumSeq::CullenNumUbseerrs(C3o)ntributed Perl DocumMeanttha:t:iNounmSeq::CullenNumbers(3)
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NAME

6       Math::NumSeq::CullenNumbers -- Cullen numbers i*2^i+1
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SYNOPSIS

9        use Math::NumSeq::CullenNumbers;
10        my $seq = Math::NumSeq::CullenNumbers->new;
11        my ($i, $value) = $seq->next;
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DESCRIPTION

14       The Cullen numbers i*2^i+1 starting from i=0,
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16           1, 3, 9, 25, 65, 161, 385, 897, 2049, 4609, 10241, ...
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FUNCTIONS

19       See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence
20       classes.
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22       "$seq = Math::NumSeq::CullenNumbers->new ()"
23           Create and return a new sequence object.
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25   Random Access
26       "$value = $seq->ith($i)"
27           Return "$i * 2**$i + 1".
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29       "$bool = $seq->pred($value)"
30           Return true if $value is a Cullen number, ie. is equal to i*2^i+1
31           for some i.
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33       "$i = $seq->value_to_i_estimate($value)"
34           Return an estimate of the i corresponding to $value.
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FORMULAS

37   Value to i Estimate
38       See "Value to i Estimate" in Math::NumSeq::WoodallNumbers.
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SEE ALSO

41       Math::NumSeq, Math::NumSeq::WoodallNumbers
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HOME PAGE

44       <http://user42.tuxfamily.org/math-numseq/index.html>
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LICENSE

47       Copyright 2011, 2012, 2013, 2014, 2016, 2019 Kevin Ryde
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49       Math-NumSeq is free software; you can redistribute it and/or modify it
50       under the terms of the GNU General Public License as published by the
51       Free Software Foundation; either version 3, or (at your option) any
52       later version.
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54       Math-NumSeq is distributed in the hope that it will be useful, but
55       WITHOUT ANY WARRANTY; without even the implied warranty of
56       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
57       General Public License for more details.
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59       You should have received a copy of the GNU General Public License along
60       with Math-NumSeq.  If not, see <http://www.gnu.org/licenses/>.
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64perl v5.32.1                      2021-01-27    Math::NumSeq::CullenNumbers(3)
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