A120922 - cp's OEIS frontend

A120922 Main diagonal of triangle A120919 (cascadence of (1+x)^3); a(n) = A120919(n,n) for n>=0.

n	a(n)
0	1
1	3
2	18
3	128
4	876
5	6138
6	43373
7	307857
8	2194731
9	15698743
10	112614054
11	809905638
12	5838361138
13	42178611879
14	305340946455
15	2214760026120
16	16094665727934
17	117171115942752
18	854506665035841
19	6242259681316251
20	45674776431331398

[1, 3, 18, 128, 876, 6138, 43373, 307857, 2194731, 15698743, 112614054, 809905638, 5838361138, 42178611879, 305340946455, 2214760026120, 16094665727934, 117171115942752, 854506665035841, 6242259681316251, 45674776431331398]

cp's OEIS Frontend

A120922 Main diagonal of triangle A120919 (cascadence of (1+x)^3); a(n) = A120919(n,n) for n>=0.

Table of values

List of values