A382673 - cp's OEIS frontend

A382673 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = n! * k! * [x^n * y^k] exp(x+y) / (exp(x) + exp(y) - exp(x+y))^3.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	10
8	10
9	1
10	1
11	22
12	52
13	22
14	1
15	1
16	46
17	208
18	208
19	46
20	1
21	1
22	94
23	736
24	1372
25	736
26	94
27	1
28	1
29	190
30	2440
31	7516
32	7516
33	2440
34	190
35	1
36	1
37	382
38	7792
39	37012
40	60316
41	37012
42	7792
43	382
44	1
45	1
46	766
47	24328
48	170668
49	418996
50	418996
51	170668
52	24328
53	766
54	1
55	1
56	1534
57	74896
58	754132
59	2653036
60	3964684
61	2653036
62	754132
63	74896
64	1534
65	1

[1, 1, 1, 1, 4, 1, 1, 10, 10, 1, 1, 22, 52, 22, 1, 1, 46, 208, 208, 46, 1, 1, 94, 736, 1372, 736, 94, 1, 1, 190, 2440, 7516, 7516, 2440, 190, 1, 1, 382, 7792, 37012, 60316, 37012, 7792, 382, 1, 1, 766, 24328, 170668, 418996, 418996, 170668, 24328, 766, 1, 1, 1534, 74896, 754132, 2653036, 3964684, 2653036, 754132, 74896, 1534, 1]

cp's OEIS Frontend

A382673 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = n! * k! * [x^n * y^k] exp(x+y) / (exp(x) + exp(y) - exp(x+y))^3.

Table of values

List of values