A244722 Number of compositions of n with exactly 10 transitions between different parts.

1, 12, 106, 677, 3494, 15072, 56687, 189836, 578105, 1621690, 4241828, 10434473, 24323694, 54053172, 115100757, 235866109, 466850629, 895363599, 1668452274, 3028132617, 5364010992, 9291348726, 15763537852, 26234025046, 42882816586, 68933785785, 109087903602

Offset: 16

Author

Joerg Arndt and Alois P. Heinz, Jul 04 2014

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 16..900

Crossrefs

Column k=10 of A238279.

Programs

Maple

b:= proc(n, v) option remember; `if`(n=0, [1, 0$10],
      add(`if`(v in [0, i], b(n-i, `if`(i<=n-i, i, -1)),
      [0, b(n-i, `if`(i<=n-i, i, -1))[1..10][]]), i=1..n))
    end:
a:= n-> b(n, 0)[11]:
seq(a(n), n=16..60);