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Search: id:A001505
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A001505 (4n+1)(4n+2)(4n+3). +0
1
6, 210, 990, 2730, 5814, 10626, 17550, 26970, 39270, 54834, 74046, 97290, 124950, 157410, 195054, 238266, 287430, 342930, 405150, 474474, 551286, 635970, 728910, 830490, 941094, 1061106, 1190910 (list; graph; listen)
OFFSET

0,1

COMMENT

Sum[n=0..inf, 1/a(n)] = log(2)/4. [Typo in comment fixed by Jaume Oliver Lafont (joliverlafont(AT)gmail.com), Jan 09 2009]

LINKS

Index entries for sequences related to linear recurrences with constant coefficients

CROSSREFS

Equals 6 * A015219.

Sequence in context: A068969 A055193 A094805 this_sequence A084694 A065945 A076715

Adjacent sequences: A001502 A001503 A001504 this_sequence A001506 A001507 A001508

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

page 1

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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