A217234 - cp's OEIS frontend

A217234 Triangle of expansion coefficients of the sum of an n X n array with equal top row and left column (extended by the rule of Pascal's triangle) in terms of the top row elements.

n	a(n)
1	1
2	1
3	4
4	1
5	12
6	6
7	1
8	40
9	20
10	8
11	1
12	140
13	70
14	30
15	10
16	1
17	504
18	252
19	112
20	42
21	12
22	1
23	1848
24	924
25	420
26	168
27	56
28	14
29	1
30	6864
31	3432
32	1584
33	660
34	240
35	72
36	16
37	1
38	25740
39	12870
40	6006
41	2574
42	990
43	330
44	90
45	18
46	1
47	97240
48	48620
49	22880
50	10010
51	4004
52	1430
53	440
54	110
55	20

[1, 1, 4, 1, 12, 6, 1, 40, 20, 8, 1, 140, 70, 30, 10, 1, 504, 252, 112, 42, 12, 1, 1848, 924, 420, 168, 56, 14, 1, 6864, 3432, 1584, 660, 240, 72, 16, 1, 25740, 12870, 6006, 2574, 990, 330, 90, 18, 1, 97240, 48620, 22880, 10010, 4004, 1430, 440, 110, 20]

cp's OEIS Frontend

A217234 Triangle of expansion coefficients of the sum of an n X n array with equal top row and left column (extended by the rule of Pascal's triangle) in terms of the top row elements.

Table of values

List of values