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 A052225 (n+1)!*(n+3)-3. 0
 5, 27, 141, 837, 5757, 45357, 403197, 3991677, 43545597, 518918397, 6706022397, 93405311997, 1394852659197, 22230464255997, 376610217983997, 6758061133823997, 128047474114559997, 2554547108585471997 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = A001048(n+2) - 3. - Michel Marcus, Jun 19 2013 EXAMPLE a(2)=27 because 27=(2+1)!*(2+3)-3 or 3*2*1*5-3. PROG (PARI) a(n) = (n+1)!*(n+3) - 3 \\ Michel Marcus, Jun 19 2013 CROSSREFS Sequence in context: A037675 A221673 A257061 * A293295 A015535 A026292 Adjacent sequences:  A052222 A052223 A052224 * A052226 A052227 A052228 KEYWORD nonn,easy AUTHOR Andreas Ulvaer (aulvaer(AT)yahoo.com), Feb 20 2000 EXTENSIONS More terms from James A. Sellers, Feb 22 2000 STATUS approved

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Last modified November 16 02:33 EST 2018. Contains 317252 sequences. (Running on oeis4.)