OFFSET
0,2
REFERENCES
Eric Harold Neville, Jacobian Elliptic Functions, 2nd ed., p. 38.
LINKS
Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1).
FORMULA
From Wesley Ivan Hurt, Oct 05 2020: (Start)
a(n) = 4*n^3 + 24*n^2 + 35*n.
a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4).
G.f.: 3*x*(21-18*x+5*x^2)/(1-x)^4. (End)
MATHEMATICA
Table[n*(2*n + 5)*(2*n + 7), {n, 0, 60}] (* Wesley Ivan Hurt, Oct 05 2020 *)
PROG
(Magma) [n*(2*n+5)*(2*n+7) : n in [0..60]]; // Wesley Ivan Hurt, Oct 05 2020
(PARI) a(n)=n*(2*n+5)*(2*n+7) \\ Charles R Greathouse IV, Oct 18 2022
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Oct 05 2020
STATUS
approved