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A269120
Number of sequences with 10 copies each of 1,2,...,n avoiding the pattern 12...n.
2
0, 0, 1, 1004849563, 7541872062618216079, 370243779118368267931211789686, 91050643996464879303067913358954122530151, 90098061524165913059428708258834814271005531460359720, 302407545158616421950876578542740909974755462890611522604756347847
OFFSET
0,4
LINKS
FORMULA
a(n) = (10*n)!/10!^n - A268853(n).
CROSSREFS
Column k=10 of A269129.
Cf. A268853.
Sequence in context: A332308 A096213 A048939 * A095733 A239919 A020666
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Feb 19 2016
STATUS
approved