A370259 - cp's OEIS frontend

A370259 a(n) = (T(n,n+1) - 1)/n^3 for n >= 1, where T(n,x) is the n-th Chebyshev polynomial of the first kind.

n	a(n)
1	1
2	2
3	9
4	75
5	961
6	16900
7	380689
8	10498005
9	343323841
10	13007560326
11	560789801881
12	27125634729375
13	1455389462287489
14	85805768251305992
15	5515372218107327521
16	383931652351786775721
17	28778117694539885440129
18	2311202255914842794592010
19	198009919900727928789497641
20	18027589454633803742596931571

[1, 2, 9, 75, 961, 16900, 380689, 10498005, 343323841, 13007560326, 560789801881, 27125634729375, 1455389462287489, 85805768251305992, 5515372218107327521, 383931652351786775721, 28778117694539885440129, 2311202255914842794592010, 198009919900727928789497641, 18027589454633803742596931571]

cp's OEIS Frontend

A370259 a(n) = (T(n,n+1) - 1)/n^3 for n >= 1, where T(n,x) is the n-th Chebyshev polynomial of the first kind.

Table of values

List of values