A322620 - cp's OEIS frontend

A322620 E.g.f.: A(x,y) = (cosh(x)cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)sinh(y)), where A(x,y) = Sum_{n>=0} Sum_{k>=0} T(n,k) * x^n*y^k/(n+k)!, as a square table of coefficients T(n,k) read by antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	6
8	6
9	1
10	1
11	16
12	30
13	16
14	1
15	1
16	40
17	140
18	140
19	40
20	1
21	1
22	96
23	615
24	1040
25	615
26	96
27	1
28	1
29	224
30	2562
31	7000
32	7000
33	2562
34	224
35	1
36	1
37	512
38	10220
39	43904
40	68390
41	43904
42	10220
43	512
44	1
45	1
46	1152
47	39384
48	260736
49	605808
50	605808
51	260736
52	39384
53	1152
54	1
55	1
56	2560
57	147645
58	1482240
59	4998210
60	7322112
61	4998210
62	1482240
63	147645
64	2560
65	1
66	1
67	5632
68	541310
69	8131200
70	39032400
71	80735424
72	80735424
73	39032400
74	8131200
75	541310
76	5632
77	1
78	1
79	12288
80	1948650
81	43310080
82	291662415
83	831080448
84	1161583500
85	831080448
86	291662415
87	43310080
88	1948650
89	12288
90	1

[1, 1, 1, 1, 2, 1, 1, 6, 6, 1, 1, 16, 30, 16, 1, 1, 40, 140, 140, 40, 1, 1, 96, 615, 1040, 615, 96, 1, 1, 224, 2562, 7000, 7000, 2562, 224, 1, 1, 512, 10220, 43904, 68390, 43904, 10220, 512, 1, 1, 1152, 39384, 260736, 605808, 605808, 260736, 39384, 1152, 1, 1, 2560, 147645, 1482240, 4998210, 7322112, 4998210, 1482240, 147645, 2560, 1, 1, 5632, 541310, 8131200, 39032400, 80735424, 80735424, 39032400, 8131200, 541310, 5632, 1, 1, 12288, 1948650, 43310080, 291662415, 831080448, 1161583500, 831080448, 291662415, 43310080, 1948650, 12288, 1]

cp's OEIS Frontend

A322620 E.g.f.: A(x,y) = (cosh(x)cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)sinh(y)), where A(x,y) = Sum_{n>=0} Sum_{k>=0} T(n,k) * x^n*y^k/(n+k)!, as a square table of coefficients T(n,k) read by antidiagonals.

Table of values

List of values

cp's OEIS Frontend

A322620 E.g.f.: A(x,y) = (cosh(x)*cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)*sinh(y)), where A(x,y) = Sum_{n>=0} Sum_{k>=0} T(n,k) * x^n*y^k/(n+k)!, as a square table of coefficients T(n,k) read by antidiagonals.

Table of values

List of values

A322620 E.g.f.: A(x,y) = (cosh(x)cosh(y) + sinh(x) + sinh(y)) / (1 - sinh(x)sinh(y)), where A(x,y) = Sum_{n>=0} Sum_{k>=0} T(n,k) * x^n*y^k/(n+k)!, as a square table of coefficients T(n,k) read by antidiagonals.