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%I #10 Nov 18 2020 20:26:33
%S 1,1,2,4,10,20,56,116,320,736,1872,4176,12712,28368,73592,177272,
%T 487304,1130712,3209792,7494720,20419744,49706280,129803592,311179624
%N Number of ways to split 1, 2, 3, ..., tn into n arithmetic progressions each with t terms, t>n.
%Y Cf. A104429-A104441, A104443.
%K nonn,more
%O 0,3
%A _Jonas Wallgren_, Mar 17 2005
%E a(0), a(13)-a(23) from _Alois P. Heinz_, Nov 18 2020