A201078 - OEIS

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A201078

Twice A137829.

2, 4, 12, 24, 50, 92, 172, 296, 510, 840, 1372, 2176, 3424, 5268, 8040, 12072, 17976, 26428, 38564, 55680, 79846, 113500, 160320, 224768, 313320, 433916, 597788, 818840, 1116238, 1513900, 2044180, 2747520, 3677864, 4902732, 6510960, 8613840, 11356208

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..36.

Brian Drake, Limits of areas under lattice paths, Discrete Math. 309 (2009), no. 12, 3936-3953. See Corollary 7.

CROSSREFS

Sequence in context: A343458 A328521 A133411 * A004645 A045687 A233411

Adjacent sequences: A201075 A201076 A201077 * A201079 A201080 A201081

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 26 2011

STATUS

approved