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A320211
Number of sets of nonempty words with a total of n letters over denary alphabet such that all letters occur at least once in the set.
3
58941091, 4097382940, 159454061270, 4587784661870, 108909499300650, 2259736176893470, 42433681634931005, 737876928284127870, 12073172284265618005, 188049325030487680920, 2812707955072045999940, 40672129029056125818340, 571583937930987524954470
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OFFSET
10,1
LINKS
Alois P. Heinz,
Table of n, a(n) for n = 10..975
MAPLE
h:= proc(n, i, k) option remember; `if`(n=0, 1, `if`(i<1, 0,
add(h(n-i*j, i-1, k)*binomial(k^i, j), j=0..n/i)))
end:
a:= n-> (k-> add((-1)^i*binomial(k, i)*h(n$2, k-i), i=0..k))(10):
seq(a(n), n=10..25);
CROSSREFS
Column k=10 of
A319501
.
Cf.
A320220
.
Sequence in context:
A034612
A015355
A321496
*
A320220
A034644
A269925
Adjacent sequences:
A320208
A320209
A320210
*
A320212
A320213
A320214
KEYWORD
nonn
AUTHOR
Alois P. Heinz
, Oct 07 2018
STATUS
approved
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Last modified August 17 17:14 EDT 2024. Contains 375227 sequences. (Running on oeis4.)