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A178855 Partial sums of A033485. 0
1, 3, 6, 11, 18, 28, 41, 59, 82, 112, 149, 196, 253, 323, 406, 507, 626, 768, 933, 1128, 1353, 1615, 1914, 2260, 2653, 3103, 3610, 4187, 4834, 5564, 6377, 7291, 8306, 9440, 10693, 12088, 13625, 15327, 17194, 19251, 21513, 23995, 26702, 29671, 32902 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..45.

FORMULA

a(n)=(A033485(2n+1)-1)/2.

CROSSREFS

A000123

Sequence in context: A230088 A011849 A173690 * A095944 A014284 A118482

Adjacent sequences:  A178852 A178853 A178854 * A178856 A178857 A178858

KEYWORD

nonn

AUTHOR

Philippe Deléham, Jun 19 2010

STATUS

approved

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Last modified May 27 02:54 EDT 2019. Contains 323597 sequences. (Running on oeis4.)