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A171003
A lower bound for A094837.
5
1, 2, 4, 9, 18, 40, 100, 225, 525, 1225, 3136, 7056, 17640, 44100, 108900, 261360, 637065, 1656369, 4008004, 10020010, 25050025, 64128064, 155739584, 393853824, 1012766976, 2538950544, 6347376360, 15774544800, 41408180100
OFFSET
1,2
COMMENTS
See Perl script for explanation.
LINKS
CROSSREFS
Sequence in context: A038044 A189911 A026732 * A094291 A026765 A264649
KEYWORD
nonn
AUTHOR
John P. Linderman, Sep 01 2010
STATUS
approved