A061702 - cp's OEIS frontend

A061702 Triangle T(n,k) defined by Sum_{n >= 0,m >= 0} T(n,m)x^my^n = 1 + y(1 + 3x - 4x^2y - 3x^2y^2 - 3x^3y^2 + 4x^4y^3)/((1 - y - 2xy - xy^2 + x^3y^3)(1 - xy)).

n	a(n)
0	1
1	1
2	3
3	1
4	6
5	5
6	1
7	9
8	18
9	6
10	1
11	12
12	42
13	44
14	9
15	1
16	15
17	75
18	145
19	95
20	13
21	1
22	18
23	117
24	336
25	420
26	192
27	20
28	1
29	21
30	168
31	644
32	1225
33	1085
34	371
35	31
36	1
37	24
38	228
39	1096
40	2834
41	3880
42	2588
43	696
44	49
45	1
46	27
47	297
48	1719
49	5652
50	10656
51	11097
52	5823
53	1278
54	78
55	1
56	30
57	375
58	2540
59	10165

[1, 1, 3, 1, 6, 5, 1, 9, 18, 6, 1, 12, 42, 44, 9, 1, 15, 75, 145, 95, 13, 1, 18, 117, 336, 420, 192, 20, 1, 21, 168, 644, 1225, 1085, 371, 31, 1, 24, 228, 1096, 2834, 3880, 2588, 696, 49, 1, 27, 297, 1719, 5652, 10656, 11097, 5823, 1278, 78, 1, 30, 375, 2540, 10165]

cp's OEIS Frontend

A061702 Triangle T(n,k) defined by Sum_{n >= 0,m >= 0} T(n,m)x^my^n = 1 + y(1 + 3x - 4x^2y - 3x^2y^2 - 3x^3y^2 + 4x^4y^3)/((1 - y - 2xy - xy^2 + x^3y^3)(1 - xy)).

Table of values

List of values

cp's OEIS Frontend

A061702 Triangle T(n,k) defined by Sum_{n >= 0,m >= 0} T(n,m)*x^m*y^n = 1 + y*(1 + 3*x - 4*x^2*y - 3*x^2*y^2 - 3*x^3*y^2 + 4*x^4*y^3)/((1 - y - 2*x*y - x*y^2 + x^3*y^3)*(1 - x*y)).

Table of values

List of values

A061702 Triangle T(n,k) defined by Sum_{n >= 0,m >= 0} T(n,m)x^my^n = 1 + y(1 + 3x - 4x^2y - 3x^2y^2 - 3x^3y^2 + 4x^4y^3)/((1 - y - 2xy - xy^2 + x^3y^3)(1 - xy)).