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A103949
a(n) is the number of distinct n-th powers of functions {1, 2, 3, 4} -> {1, 2, 3, 4}.
4
1, 256, 100, 116, 73, 148, 44, 148, 73, 116, 76, 148, 41, 148, 76, 116, 73, 148, 44, 148, 73, 116, 76, 148, 41, 148, 76, 116, 73, 148, 44, 148, 73, 116, 76, 148, 41, 148, 76, 116, 73, 148, 44, 148, 73, 116, 76, 148, 41, 148, 76, 116, 73, 148, 44, 148, 73, 116, 76, 148
OFFSET
0,2
COMMENTS
For n > 2, a(n) = a(n+12).
FORMULA
G.f.: (24*x^8+132*x^7+92*x^6-80*x^5-288*x^4-472*x^3-357*x^2-257*x-1) / ((x-1)*(x+1)*(x^2+1)*(x^2+x+1)). - Colin Barker, Aug 07 2013
MATHEMATICA
LinearRecurrence[{-1, -1, 0, 1, 1, 1}, {1, 256, 100, 116, 73, 148, 44, 148, 73}, 60] (* Harvey P. Dale, Jun 22 2015 *)
CROSSREFS
Row n=4 of A247026.
Sequence in context: A133487 A342039 A188830 * A057066 A186482 A186474
KEYWORD
easy,nonn
AUTHOR
David Wasserman, Feb 21 2005
STATUS
approved