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A331769
El Gradechi's hybrid coefficients alpha^{4,6}_n.
3
-264, -3456, 0, -23520, 12600, -88704, 68544, -250560, 225720, -591360, 576576, -1231776, 1255800, -2338560, 2448000, -4132224, 4395384, -6894720, 7405440, -10977120, 11858616, -16807296, 18216000, -24897600, 27027000, -35852544, 38937024, -50376480, 54695160, -69281280, 75161856
OFFSET
0,1
COMMENTS
See El Gradechi (2013) for precise definition.
LINKS
Amine M. El Gradechi, The Lie theory of certain modular form and arithmetic identities, The Ramanujan Journal 31.3 (2013): 397-433.
FORMULA
a(n) = (-1)^n*240*binomial(n+5, 5) - 504*binomial(n+3, 3). - Robin Visser, Jul 29 2023
PROG
(Magma) [(-1)^n*240*Binomial(n+5, 5)-504*Binomial(n+3, 3): n in [0..100]]; // Robin Visser, Jul 29 2023
(PARI) a(n) = (-1)^n*240*binomial(n+5, 5)-504*binomial(n+3, 3); \\ Robin Visser, Jul 29 2023
CROSSREFS
Sequence in context: A004533 A231301 A211718 * A288995 A092724 A112069
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Feb 08 2020
EXTENSIONS
More terms from Robin Visser, Jul 29 2023
STATUS
approved