A229036 - cp's OEIS frontend

A229036 G.f.: Sum_{n>=0} (3n-1)^n x^n / (1 + (3n-1)x)^n.

n	a(n)
0	1
1	2
2	21
3	270
4	4212
5	77760
6	1662120
7	40415760
8	1102248000
9	33331979520
10	1107097891200
11	40069801094400
12	1569793384051200
13	66185883219456000
14	2988292627358438400
15	143855017177487616000
16	7355369573944584192000
17	398090614491857903616000
18	22737098558477268725760000

[1, 2, 21, 270, 4212, 77760, 1662120, 40415760, 1102248000, 33331979520, 1107097891200, 40069801094400, 1569793384051200, 66185883219456000, 2988292627358438400, 143855017177487616000, 7355369573944584192000, 398090614491857903616000, 22737098558477268725760000]

cp's OEIS Frontend

A229036 G.f.: Sum_{n>=0} (3n-1)^n x^n / (1 + (3n-1)x)^n.

Table of values

List of values

cp's OEIS Frontend

A229036 G.f.: Sum_{n>=0} (3*n-1)^n * x^n / (1 + (3*n-1)*x)^n.

Table of values

List of values

A229036 G.f.: Sum_{n>=0} (3n-1)^n x^n / (1 + (3n-1)x)^n.