A125785 Column 5 of table A125781.

1, 6, 29, 141, 739, 4276, 27483, 195978, 1544074, 13371684, 126591212, 1303252476, 14517950305, 174196495882, 2241822436160, 30826098464147, 451299846525541, 7012090426122158, 115289977296253757, 2000463474160276658

Offset

0,2

Comments

A091352 equals column 1 of both table A125781 and triangle A091351.

Links

Table of n, a(n) for n=0..19.

Formula

a(n) = A091352(n+2) - 2*A091352(n+1). a(n) = A125782(n+1) - A125783(n+1).

Example

A091352 begins: [1, 2, 4, 9, 24, 77, 295, 1329, 6934, 41351, ...];
a(5) = A091352(8) - 2*A091352(7) = 6934 - 2*1329 = 4276.

Crossrefs

Cf. A125781; other columns: A091352, A125782, A125783, A125784, A125786.

Sequence in context: A367469 A009153 A012325 * A186651 A292034 A108982

Adjacent sequences: A125782 A125783 A125784 * A125786 A125787 A125788

Keyword

nonn

Author

Paul D. Hanna, Dec 09 2006

Status

approved