A209450 - cp's OEIS frontend

A209450 a(n) = Pell(n)*A132973(n) for n>=1, with a(0)=1, where A132973 lists the coefficients in psi(-q)^3/psi(-q^3) and where psi() is a Ramanujan theta function.

n	a(n)
0	1
1	-3
2	6
3	-15
4	36
5	0
6	210
7	-1014
8	1224
9	-2955
10	0
11	0
12	41580
13	-200766
14	484692
15	0
16	1412496
17	0
18	8232630
19	-39750654
20	0
21	-231683790
22	0
23	0
24	1630019160
25	-3935214363
26	19000895772
27	-22936110135
28	110745336312
29	0
30	0
31	-1558305137094
32	1881040698144
33	0
34	0
35	0
36	63900011068740

[1, -3, 6, -15, 36, 0, 210, -1014, 1224, -2955, 0, 0, 41580, -200766, 484692, 0, 1412496, 0, 8232630, -39750654, 0, -231683790, 0, 0, 1630019160, -3935214363, 19000895772, -22936110135, 110745336312, 0, 0, -1558305137094, 1881040698144, 0, 0, 0, 63900011068740]

cp's OEIS Frontend

A209450 a(n) = Pell(n)*A132973(n) for n>=1, with a(0)=1, where A132973 lists the coefficients in psi(-q)^3/psi(-q^3) and where psi() is a Ramanujan theta function.

Table of values

List of values