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 A053100 a(n) = ((6*n+7)(!^6))/7, related to A008542 ((6*n+1)(!^6) sextic, or 6-factorials). 5
 1, 13, 247, 6175, 191425, 7082725, 304557175, 14923301575, 820781586625, 50067676784125, 3354534344536375, 244881007151155375, 19345599564941274625, 1644375963020008343125, 149638212634820759224375 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Row m=7 of the array A(7; m,n) := ((6*n+m)(!^6))/m(!^6), m >= 0, n >= 0. LINKS G. C. Greubel, Table of n, a(n) for n = 0..344 FORMULA a(n) = ((6*n+7)(!^6))/7(!^6) = A008542(n+2)/7. E.g.f.: 1/(1-6*x)^(13/6). MATHEMATICA s=1; lst={s}; Do[s+=n*s; AppendTo[lst, s], {n, 12, 5!, 6}]; lst (* Vladimir Joseph Stephan Orlovsky, Nov 08 2008 *) With[{nn=20}, CoefficientList[Series[1/(1-6x)^(13/6), {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Apr 20 2015 *) PROG (PARI) x='x+O('x^30); Vec(serlaplace(1/(1-6*x)^(13/6))) \\ G. C. Greubel, Aug 15 2018 (MAGMA) m:=30; R:=PowerSeriesRing(Rationals(), m); b:=Coefficients(R!(1/(1-6*x)^(13/6))); [Factorial(n-1)*b[n]: n in [1..m]]; // G. C. Greubel, Aug 15 2018 CROSSREFS Cf. A047058, A008542(n+1), A034689(n+1), A034723(n+1), A034724(n+1), A034787(n+1), A034788(n+1), this sequence, A053101, A053102, A053103 (rows m=0..10). Sequence in context: A049665 A196665 A027400 * A320308 A219059 A218315 Adjacent sequences:  A053097 A053098 A053099 * A053101 A053102 A053103 KEYWORD easy,nonn AUTHOR STATUS approved

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Last modified March 21 22:19 EDT 2019. Contains 321382 sequences. (Running on oeis4.)