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A083304
a(n) = (4*(n+5)^n + n^n)/5.
3
1, 5, 40, 415, 5300, 80625, 1426580, 28830155, 655940020, 16606321525, 463320312500, 14130811169655, 467881009873460, 16718946913855385, 641427749991418900, 26301978778076171875, 1148144301008330172980
OFFSET
0,2
LINKS
PROG
(Magma) [(4*(n+5)^n+n^n)/5: n in [0..25]]; // Vincenzo Librandi, Jun 29 2011
(PARI) a(n)=(4*(n+5)^n+n^n)/5 \\ Charles R Greathouse IV, Jun 29 2011
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Apr 24 2003
STATUS
approved