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A276979
a(n) = (floor(n/2)+1)^n.
2
1, 4, 8, 81, 243, 4096, 16384, 390625, 1953125, 60466176, 362797056, 13841287201, 96889010407, 4398046511104, 35184372088832, 1853020188851841, 16677181699666569, 1000000000000000000, 10000000000000000000, 672749994932560009201
OFFSET
1,2
COMMENTS
Functions from [n] to [n] with f(i) even or f(i) = 1 for all i.
Functions from [n] to [n] with f(i) odd or f(i) = n for all i.
MATHEMATICA
Table[(Floor[n/2] + 1)^n, {n, 1, 20}]
PROG
(PARI) a(n) = (n\2 + 1)^n; \\ Michel Marcus, Oct 08 2016
CROSSREFS
Sequence in context: A288956 A353032 A236284 * A221256 A068208 A090254
KEYWORD
nonn,easy
AUTHOR
Olivier Gérard, Sep 23 2016
STATUS
approved