A187075 - cp's OEIS frontend

A187075 A Galton triangle: T(n,k) = 2kT(n-1,k) + (2k-1)T(n-1,k-1).

n	a(n)
1	1
2	2
3	3
4	4
5	18
6	15
7	8
8	84
9	180
10	105
11	16
12	360
13	1500
14	2100
15	945
16	32
17	1488
18	10800
19	27300
20	28350
21	10395
22	64
23	6048
24	72240
25	294000
26	529200
27	436590
28	135135
29	128
30	24384
31	463680
32	2857680
33	7938000
34	11060280
35	7567560
36	2027025
37	256
38	97920
39	2904000
40	26107200
41	105099120
42	220041360
43	249729480
44	145945800
45	34459425

[1, 2, 3, 4, 18, 15, 8, 84, 180, 105, 16, 360, 1500, 2100, 945, 32, 1488, 10800, 27300, 28350, 10395, 64, 6048, 72240, 294000, 529200, 436590, 135135, 128, 24384, 463680, 2857680, 7938000, 11060280, 7567560, 2027025, 256, 97920, 2904000, 26107200, 105099120, 220041360, 249729480, 145945800, 34459425]

cp's OEIS Frontend

A187075 A Galton triangle: T(n,k) = 2kT(n-1,k) + (2k-1)T(n-1,k-1).

Table of values

List of values

cp's OEIS Frontend

A187075 A Galton triangle: T(n,k) = 2*k*T(n-1,k) + (2*k-1)*T(n-1,k-1).

Table of values

List of values

A187075 A Galton triangle: T(n,k) = 2kT(n-1,k) + (2k-1)T(n-1,k-1).