A202153 - cp's OEIS frontend

A202153 G.f.: Sum_{n>=0} x^n * Product_{k=0..n-1} (1 + (2k+1)x).

n	a(n)
0	1
1	1
2	2
3	5
4	13
5	40
6	127
7	443
8	1610
9	6207
10	24919
11	104440
12	453913
13	2042537
14	9488242
15	45403797
16	223433077
17	1128619968
18	5844484375
19	30981783123
20	167949231882
21	929951967519
22	5254958379951
23	30276315741008
24	177717403802001
25	1061989593129105
26	6456342053713346

[1, 1, 2, 5, 13, 40, 127, 443, 1610, 6207, 24919, 104440, 453913, 2042537, 9488242, 45403797, 223433077, 1128619968, 5844484375, 30981783123, 167949231882, 929951967519, 5254958379951, 30276315741008, 177717403802001, 1061989593129105, 6456342053713346]

cp's OEIS Frontend

A202153 G.f.: Sum_{n>=0} x^n * Product_{k=0..n-1} (1 + (2k+1)x).

Table of values

List of values

cp's OEIS Frontend

A202153 G.f.: Sum_{n>=0} x^n * Product_{k=0..n-1} (1 + (2*k+1)*x).

Table of values

List of values

A202153 G.f.: Sum_{n>=0} x^n * Product_{k=0..n-1} (1 + (2k+1)x).