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1, 0, -2, -3, 8, 95, 684, 4991, 40256, 362799, 3628700, 39916679, 479001456, 6227020631, 87178291004, 1307674367775, 20922789887744, 355687428095711, 6402373705727676, 121645100408831639, 2432902008176639600, 51090942171709439559, 1124000727777607679516
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..400
Index entries for sequences related to factorial numbers
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MATHEMATICA
| Table[n! - n^2, {n, 0, 30}] (* From Vladimir Joseph Stephan Orlovsky, Jun 27 2011 *)
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PROG
| (MAGMA) [Factorial(n) - n^2: n in [0..25]]; // Vincenzo Librandi, Jun 28 2011
(PARI) a(n)=n!-n^2 \\ Charles R Greathouse IV, Jun 28 2011
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CROSSREFS
| Sequence in context: A003096 A042815 A191353 * A079938 A112237 A132502
Adjacent sequences: A005005 A005006 A005007 * A005009 A005010 A005011
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KEYWORD
| sign,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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