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A104442 Number of ways to split 1, 2, 3, ..., tn into n arithmetic progressions each with t terms, t>n. 3
1, 1, 2, 4, 10, 20, 56, 116, 320, 736, 1872, 4176, 12712, 28368, 73592, 177272, 487304, 1130712, 3209792, 7494720, 20419744, 49706280, 129803592, 311179624 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Cf. A104429-A104441, A104443.

Sequence in context: A247630 A015889 A090246 * A104434 A104433 A104432

Adjacent sequences:  A104439 A104440 A104441 * A104443 A104444 A104445

KEYWORD

nonn,more

AUTHOR

Jonas Wallgren, Mar 17 2005

EXTENSIONS

a(0), a(13)-a(23) from Alois P. Heinz, Nov 18 2020

STATUS

approved

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Last modified September 18 11:20 EDT 2021. Contains 347518 sequences. (Running on oeis4.)