A370148 - cp's OEIS frontend

A370148 Expansion of A(x) = [ Sum_{n>=0} (-7)^(n(n-1)/2) (1 + (-7)^(2n+1))/(-6) x^(n*(n+1)/2) ]^(1/3).

n	a(n)
0	1
1	19
2	-361
3	4896
4	-186048
5	6361181
6	-265706784
7	10569322565
8	-439680983904
9	18480280546656
10	-790074277452000
11	34174424338394976
12	-1494143747622128305
13	65898152303725266336
14	-2928713377590693411552
15	131019840536990930329051
16	-5895300394280706457304448
17	266614701826937350737301056

[1, 19, -361, 4896, -186048, 6361181, -265706784, 10569322565, -439680983904, 18480280546656, -790074277452000, 34174424338394976, -1494143747622128305, 65898152303725266336, -2928713377590693411552, 131019840536990930329051, -5895300394280706457304448, 266614701826937350737301056]

cp's OEIS Frontend

A370148 Expansion of A(x) = [ Sum_{n>=0} (-7)^(n(n-1)/2) (1 + (-7)^(2n+1))/(-6) x^(n*(n+1)/2) ]^(1/3).

Table of values

List of values

cp's OEIS Frontend

A370148 Expansion of A(x) = [ Sum_{n>=0} (-7)^(n*(n-1)/2) * (1 + (-7)^(2*n+1))/(-6) * x^(n*(n+1)/2) ]^(1/3).

Table of values

List of values

A370148 Expansion of A(x) = [ Sum_{n>=0} (-7)^(n(n-1)/2) (1 + (-7)^(2n+1))/(-6) x^(n*(n+1)/2) ]^(1/3).