A086617 - cp's OEIS frontend

A086617 Symmetric square table of coefficients, read by antidiagonals, where T(n,k) is the coefficient of x^ny^k in f(x,y) that satisfies f(x,y) = 1/((1-x)(1-y)) + xyf(x,y)^2.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	3
9	1
10	1
11	4
12	7
13	4
14	1
15	1
16	5
17	13
18	13
19	5
20	1
21	1
22	6
23	21
24	33
25	21
26	6
27	1
28	1
29	7
30	31
31	69
32	69
33	31
34	7
35	1
36	1
37	8
38	43
39	126
40	183
41	126
42	43
43	8
44	1
45	1
46	9
47	57
48	209
49	411
50	411
51	209
52	57
53	9
54	1
55	1
56	10
57	73
58	323
59	815
60	1118
61	815
62	323
63	73
64	10
65	1
66	1
67	11
68	91
69	473
70	1471
71	2633
72	2633
73	1471
74	473
75	91
76	11
77	1

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 7, 4, 1, 1, 5, 13, 13, 5, 1, 1, 6, 21, 33, 21, 6, 1, 1, 7, 31, 69, 69, 31, 7, 1, 1, 8, 43, 126, 183, 126, 43, 8, 1, 1, 9, 57, 209, 411, 411, 209, 57, 9, 1, 1, 10, 73, 323, 815, 1118, 815, 323, 73, 10, 1, 1, 11, 91, 473, 1471, 2633, 2633, 1471, 473, 91, 11, 1]

cp's OEIS Frontend

A086617 Symmetric square table of coefficients, read by antidiagonals, where T(n,k) is the coefficient of x^ny^k in f(x,y) that satisfies f(x,y) = 1/((1-x)(1-y)) + xyf(x,y)^2.

Table of values

List of values

cp's OEIS Frontend

A086617 Symmetric square table of coefficients, read by antidiagonals, where T(n,k) is the coefficient of x^n*y^k in f(x,y) that satisfies f(x,y) = 1/((1-x)(1-y)) + xy*f(x,y)^2.

Table of values

List of values

A086617 Symmetric square table of coefficients, read by antidiagonals, where T(n,k) is the coefficient of x^ny^k in f(x,y) that satisfies f(x,y) = 1/((1-x)(1-y)) + xyf(x,y)^2.