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A137358 Sum_{k <= n/2 } binomial(n-2k, 3k+2). 2
0, 0, 1, 3, 6, 10, 15, 22, 34, 57, 101, 181, 319, 549, 928, 1557, 2617, 4427, 7536, 12872, 21992, 37513, 63862, 108575, 184524, 313701, 533619, 908140, 1545839, 2631240, 4478044, 7619870, 12964858, 22058847, 37533077, 63865592, 108676262, 184929945, 314685488 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

REFERENCES

D. E. Knuth, The Art of Computer Programming, Vol. 4A, Section 7.1.4.

CROSSREFS

Cf. A137356-A137361, A136444.

Sequence in context: A173645 A122047 A177100 * A143963 A139714 A063542

Adjacent sequences:  A137355 A137356 A137357 * A137359 A137360 A137361

KEYWORD

nonn

AUTHOR

D. E. Knuth, Apr 11 2008

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Last modified February 15 07:22 EST 2012. Contains 205706 sequences.