OFFSET
0,2
LINKS
Jinyuan Wang, Table of n, a(n) for n = 0..1000
Bülent Köklüce, Cusp forms in S_6 (Gamma_ 0(23)), S_8 (Gamma_0 (23)) and the number of representations of numbers by some quadratic forms in 12 and 16 variables, The Ramanujan Journal 34.2 (2014): 187-208. See F_6, p. 196.
PROG
(PARI) a(n) = polcoeff((1 + 2*x*Ser(qfrep([2, 1; 1, 12], n, 1)))^6, n); \\ Jinyuan Wang, Feb 20 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 17 2019
STATUS
approved