A277930 - cp's OEIS frontend

A277930 Array of coefficients a(k,n) of the formal power series A(k,x) read by upwards antidiagonals, where A(k,x) = ((2k+1)x+sqrt(1+4k(k+1)*x^2))/(1-x^2), k>=0.

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	5
8	5
9	1
10	1
11	7
12	13
13	3
14	1
15	1
16	9
17	25
18	5
19	-3
20	1
21	1
22	11
23	41
24	7
25	-59
26	3
27	1
28	1
29	13
30	61
31	9
32	-263
33	5
34	29
35	1
36	1
37	15
38	85
39	11
40	-759
41	7
42	805
43	3
44	1
45	1
46	17
47	113
48	13
49	-1739
50	9
51	6649
52	5
53	-131
54	1
55	1
56	19
57	145
58	15
59	-3443
60	11
61	31241
62	7
63	-12155
64	3
65	1
66	1
67	21
68	181
69	17
70	-6159
71	13
72	106261
73	9
74	-200711
75	5
76	765
77	1

[1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 7, 13, 3, 1, 1, 9, 25, 5, -3, 1, 1, 11, 41, 7, -59, 3, 1, 1, 13, 61, 9, -263, 5, 29, 1, 1, 15, 85, 11, -759, 7, 805, 3, 1, 1, 17, 113, 13, -1739, 9, 6649, 5, -131, 1, 1, 19, 145, 15, -3443, 11, 31241, 7, -12155, 3, 1, 1, 21, 181, 17, -6159, 13, 106261, 9, -200711, 5, 765, 1]

cp's OEIS Frontend

A277930 Array of coefficients a(k,n) of the formal power series A(k,x) read by upwards antidiagonals, where A(k,x) = ((2k+1)x+sqrt(1+4k(k+1)*x^2))/(1-x^2), k>=0.

Table of values

List of values

cp's OEIS Frontend

A277930 Array of coefficients a(k,n) of the formal power series A(k,x) read by upwards antidiagonals, where A(k,x) = ((2*k+1)*x+sqrt(1+4*k*(k+1)*x^2))/(1-x^2), k>=0.

Table of values

List of values

A277930 Array of coefficients a(k,n) of the formal power series A(k,x) read by upwards antidiagonals, where A(k,x) = ((2k+1)x+sqrt(1+4k(k+1)*x^2))/(1-x^2), k>=0.