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A226889
Number of n-length words w over a 10-ary alphabet {a1,a2,...,a10} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a10) >= 1, where #(w,x) counts the letters x in word w.
2
3628800, 19958400, 199584000, 1556755200, 14045391360, 116237721600, 1096301606400, 9944898163200, 98823235230720, 985768475852160, 10494386800934400, 88832292392188800, 848327839539586560, 7627235867290892160, 71992606401661397760, 656191923706230912000
OFFSET
10,1
LINKS
CROSSREFS
Column k=10 of A226874.
Sequence in context: A068158 A011521 A321846 * A284207 A061603 A153761
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 21 2013
STATUS
approved