A154987 - cp's OEIS frontend

A154987 Triangle read by rows: T(n,k) = t(n,k) + t(n,n-k), where t(n,k) = 2(n!/k!)(2*(n + k) - 1).

n	a(n)
0	-2
1	4
2	4
3	13
4	20
5	13
6	41
7	69
8	69
9	41
10	183
11	268
12	264
13	268
14	183
15	1099
16	1405
17	1080
18	1080
19	1405
20	1099
21	7943
22	9486
23	5970
24	4080
25	5970
26	9486
27	7943
28	65547
29	75775
30	43806
31	20370
32	20370
33	43806
34	75775
35	65547
36	604831
37	685672
38	384552
39	149520
40	77280
41	149520
42	384552
43	685672
44	604831

[-2, 4, 4, 13, 20, 13, 41, 69, 69, 41, 183, 268, 264, 268, 183, 1099, 1405, 1080, 1080, 1405, 1099, 7943, 9486, 5970, 4080, 5970, 9486, 7943, 65547, 75775, 43806, 20370, 20370, 43806, 75775, 65547, 604831, 685672, 384552, 149520, 77280, 149520, 384552, 685672, 604831]

cp's OEIS Frontend

A154987 Triangle read by rows: T(n,k) = t(n,k) + t(n,n-k), where t(n,k) = 2(n!/k!)(2*(n + k) - 1).

Table of values

List of values

cp's OEIS Frontend

A154987 Triangle read by rows: T(n,k) = t(n,k) + t(n,n-k), where t(n,k) = 2*(n!/k!)*(2*(n + k) - 1).

Table of values

List of values

A154987 Triangle read by rows: T(n,k) = t(n,k) + t(n,n-k), where t(n,k) = 2(n!/k!)(2*(n + k) - 1).