A324961 - cp's OEIS frontend

A324961 a(n) is the coefficient of y^n in Product_{k=0..n-1} (1 + (k+2)*y + y^2), for n >= 0.

n	a(n)
0	1
1	2
2	8
3	42
4	268
5	2000
6	17038
7	162890
8	1725372
9	20044728
10	253332924
11	3459443988
12	50751642214
13	795946804016
14	13287749613058
15	235247030990910
16	4402121435984292
17	86812342423952520
18	1799413314325764232
19	39108496756464803888
20	889322428578635843156
21	21117181548344260655472
22	522654439233442389220252
23	13460850532654848043445348
24	360199399036948435113653582
25	10000217284416098095635943300
26	287673368509370723571678876660
27	8564090161107702738179495471400

[1, 2, 8, 42, 268, 2000, 17038, 162890, 1725372, 20044728, 253332924, 3459443988, 50751642214, 795946804016, 13287749613058, 235247030990910, 4402121435984292, 86812342423952520, 1799413314325764232, 39108496756464803888, 889322428578635843156, 21117181548344260655472, 522654439233442389220252, 13460850532654848043445348, 360199399036948435113653582, 10000217284416098095635943300, 287673368509370723571678876660, 8564090161107702738179495471400]

cp's OEIS Frontend

A324961 a(n) is the coefficient of y^n in Product_{k=0..n-1} (1 + (k+2)*y + y^2), for n >= 0.

Table of values

List of values