OFFSET
1,3
FORMULA
Recurrence: 36*(n-1)*n*(7372*n^2 - 45117*n + 67172)*a(n) = 12*(n-1)*(81092*n^3 - 606867*n^2 + 1412200*n - 999768)*a(n-1) + (1540748*n^4 - 16034765*n^3 + 61923424*n^2 - 104990155*n + 65807196)*a(n-2) - (302252*n^4 - 2594369*n^3 + 7923316*n^2 - 10164511*n + 4599084)*a(n-3) - 7*(n-4)*(169556*n^3 - 1524243*n^2 + 4084408*n - 3312093)*a(n-4) + 49*(n-5)*(n-4)*(7372*n^2 - 30373*n + 29427)*a(n-5). - Vaclav Kotesovec, Jan 02 2021
MATHEMATICA
Rest[CoefficientList[InverseSeries[Series[x*(3x^2 - 1)/(-1 - x + 2x^2 + x^3), {x, 0, 40}], x], x]] (* Vaclav Kotesovec, Jan 02 2021 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved