A129986 Second differences of A129983.

1, 2, 4, 8, 16, 33, 70, 151, 328, 714, 1556, 3397, 7436, 16329, 35974, 79496, 176160, 391341, 871338, 1944079, 4345700, 9730886, 21823468, 49012777, 110216952, 248133169, 559199786, 1261385676, 2847638456, 6433380969, 14543748302, 32897642087, 74452009504, 168572269698, 381831192836, 865191342125

Offset

0,2

Links

Table of n, a(n) for n=0..35.

Crossrefs

Sequence in context: A005821 A177794 A004149 * A368461 A317880 A299271

Adjacent sequences: A129983 A129984 A129985 * A129987 A129988 A129989

Keyword

nonn

Author

Paul Curtz, Jun 14 2007

Status

approved