A037259 Second differences of A037257.

4, 5, 7, 8, 10, 12, 13, 14, 15, 16, 17, 19, 21, 22, 23, 24, 25, 28, 29, 30, 31, 32, 33, 34, 35, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86

Offset

0,1

Links

Table of n, a(n) for n=0..69.

Formula

a(n) = A037257(n+2) - 2*A037257(n+1) + A037257(n).

Crossrefs

Cf. A005228, A030124, A037257.

Sequence in context: A032728 A078577 A225387 * A219115 A118731 A076203

Adjacent sequences: A037256 A037257 A037258 * A037260 A037261 A037262

Keyword

nonn,easy

Author

N. J. A. Sloane.

Extensions

More terms from Larry Reeves (larryr(AT)acm.org), Sep 25 2000

Status

approved