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A244722
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Number of compositions of n with exactly 10 transitions between different parts.
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2
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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
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OFFSET
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16,2
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LINKS
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MAPLE
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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);
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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