OFFSET
0,3
REFERENCES
Köklüce, Bülent. "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 Phi_k, p. 188. (A028930 is Phi_1.)
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..5000
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 18 2019
STATUS
approved