login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A063358
Dimension of the space of weight n cuspidal newforms for Gamma_1( 85 ).
0
-1, 215, 480, 742, 1004, 1266, 1528, 1790, 2052, 2314, 2576, 2842, 3100, 3362, 3624, 3890, 4148, 4414, 4672, 4938, 5196, 5462, 5720, 5990, 6244, 6510, 6768, 7038, 7292, 7562, 7816, 8086, 8340, 8610, 8864, 9138, 9388, 9658, 9912, 10186
OFFSET
2,2
FORMULA
From Colin Barker, Feb 25 2016: (Start)
a(n) = a(n-4) + a(n-6) - a(n-10) for n>13.
G.f.: -x^2*(1 -215*x -480*x^2 -742*x^3 -1005*x^4 -1051*x^5 -1049*x^6 -833*x^7 -568*x^8 -306*x^9 -43*x^10 -x^11) / ((1 -x)^2*(1 +x)^2*(1 -x +x^2)*(1 +x^2)*(1 +x +x^2)).
(End)
CROSSREFS
Sequence in context: A038860 A120536 A043391 * A193398 A193396 A259889
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Jul 14 2001
STATUS
approved