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A163950 The number of functions in a finite set that can be expressed by a composition power of another function. (It differs from A163948, as it excludes self compositions). 1
1, 1, 12, 118, 1405, 19476, 300559 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The complementary set to A163949.

LINKS

Table of n, a(n) for n=1..7.

FORMULA

a(n) = n^n - A163949(n).

CROSSREFS

Cf. A163947, A163948, A163949.

Sequence in context: A016142 A105218 A180777 * A025132 A001712 A285232

Adjacent sequences:  A163947 A163948 A163949 * A163951 A163952 A163953

KEYWORD

more,nonn

AUTHOR

Carlos Alves, Aug 06 2009

STATUS

approved

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Last modified October 16 03:15 EDT 2019. Contains 328038 sequences. (Running on oeis4.)