A104432 Number of ways to split 1, 2, 3, ..., 6n into n arithmetic progressions each with 6 terms.

1, 1, 2, 4, 10, 20, 57, 119, 329, 760, 1942, 4452, 13574, 30665, 80117, 194856, 540694, 1269741, 3609862, 8533257, 23335107, 57986963, 153411928, 372396163, 1101790344, 2658622622, 7146772891, 17933604788

Offset

0,3

Links

Table of n, a(n) for n=0..27.

Crossrefs

Cf. A104429-A104431, A104433-A104443.

Sequence in context: A104442 A104434 A104433 * A355747 A349430 A129211

Adjacent sequences: A104429 A104430 A104431 * A104433 A104434 A104435

Keyword

nonn,more

Author

Jonas Wallgren, Mar 17 2005

Extensions

a(0), a(11)-a(16) from Alois P. Heinz, Nov 18 2020

a(17)-a(27) from Martin Fuller, Apr 04 2026

Status

approved