A322193 - cp's OEIS frontend

A322193 E.g.f.: C(x,y) = cosh(x)cosh(y) / (1 - sinh(x)sinh(y)), where C(x,y) = Sum_{n>=0} Sum_{k=0..2n} T(n,k) x^(2n-k)y^k/((2n-k)!k!), as a triangle of coefficients T(n,k) read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	4
6	5
7	4
8	1
9	1
10	16
11	41
12	52
13	41
14	16
15	1
16	1
17	64
18	365
19	784
20	977
21	784
22	365
23	64
24	1
25	1
26	256
27	3281
28	12352
29	23801
30	29056
31	23801
32	12352
33	3281
34	256
35	1
36	1
37	1024
38	29525
39	196864
40	589217
41	1049344
42	1257125
43	1049344
44	589217
45	196864
46	29525
47	1024
48	1
49	1
50	4096
51	265721
52	3146752
53	14677961
54	37789696
55	63318641
56	74628352
57	63318641
58	37789696
59	14677961
60	3146752
61	265721
62	4096
63	1
64	1
65	16384
66	2391485
67	50335744
68	366476657
69	1360482304
70	3140590685
71	5010663424
72	5823720257
73	5010663424
74	3140590685
75	1360482304
76	366476657
77	50335744
78	2391485
79	16384
80	1

[1, 1, 1, 1, 1, 4, 5, 4, 1, 1, 16, 41, 52, 41, 16, 1, 1, 64, 365, 784, 977, 784, 365, 64, 1, 1, 256, 3281, 12352, 23801, 29056, 23801, 12352, 3281, 256, 1, 1, 1024, 29525, 196864, 589217, 1049344, 1257125, 1049344, 589217, 196864, 29525, 1024, 1, 1, 4096, 265721, 3146752, 14677961, 37789696, 63318641, 74628352, 63318641, 37789696, 14677961, 3146752, 265721, 4096, 1, 1, 16384, 2391485, 50335744, 366476657, 1360482304, 3140590685, 5010663424, 5823720257, 5010663424, 3140590685, 1360482304, 366476657, 50335744, 2391485, 16384, 1]

cp's OEIS Frontend

A322193 E.g.f.: C(x,y) = cosh(x)cosh(y) / (1 - sinh(x)sinh(y)), where C(x,y) = Sum_{n>=0} Sum_{k=0..2n} T(n,k) x^(2n-k)y^k/((2n-k)!k!), as a triangle of coefficients T(n,k) read by rows.

Table of values

List of values

cp's OEIS Frontend

A322193 E.g.f.: C(x,y) = cosh(x)*cosh(y) / (1 - sinh(x)*sinh(y)), where C(x,y) = Sum_{n>=0} Sum_{k=0..2*n} T(n,k) * x^(2*n-k)*y^k/((2*n-k)!*k!), as a triangle of coefficients T(n,k) read by rows.

Table of values

List of values

A322193 E.g.f.: C(x,y) = cosh(x)cosh(y) / (1 - sinh(x)sinh(y)), where C(x,y) = Sum_{n>=0} Sum_{k=0..2n} T(n,k) x^(2n-k)y^k/((2n-k)!k!), as a triangle of coefficients T(n,k) read by rows.