A291845 - cp's OEIS frontend

A291845 Triangle, read by rows, where the g.f. of row n equals Product_{k=0..n-1} (1 + (2k+1)x + x^2) for n>0 with a single '1' in row 0.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	4
6	5
7	4
8	1
9	1
10	9
11	26
12	33
13	26
14	9
15	1
16	1
17	16
18	90
19	224
20	283
21	224
22	90
23	16
24	1
25	1
26	25
27	235
28	1050
29	2389
30	2995
31	2389
32	1050
33	235
34	25
35	1
36	1
37	36
38	511
39	3660
40	14174
41	30324
42	37723
43	30324
44	14174
45	3660
46	511
47	36
48	1
49	1
50	49
51	980
52	10339
53	62265
54	218246
55	446109
56	551047
57	446109
58	218246
59	62265
60	10339
61	980
62	49
63	1
64	1
65	64
66	1716
67	25088
68	218330
69	1162560
70	3782064
71	7460928
72	9157923
73	7460928
74	3782064
75	1162560
76	218330
77	25088
78	1716
79	64
80	1
81	1
82	81
83	2805
84	54324
85	646542
86	4899258
87	23763914
88	72918576
89	139775763
90	170606547
91	139775763
92	72918576
93	23763914
94	4899258
95	646542
96	54324
97	2805
98	81
99	1

[1, 1, 1, 1, 1, 4, 5, 4, 1, 1, 9, 26, 33, 26, 9, 1, 1, 16, 90, 224, 283, 224, 90, 16, 1, 1, 25, 235, 1050, 2389, 2995, 2389, 1050, 235, 25, 1, 1, 36, 511, 3660, 14174, 30324, 37723, 30324, 14174, 3660, 511, 36, 1, 1, 49, 980, 10339, 62265, 218246, 446109, 551047, 446109, 218246, 62265, 10339, 980, 49, 1, 1, 64, 1716, 25088, 218330, 1162560, 3782064, 7460928, 9157923, 7460928, 3782064, 1162560, 218330, 25088, 1716, 64, 1, 1, 81, 2805, 54324, 646542, 4899258, 23763914, 72918576, 139775763, 170606547, 139775763, 72918576, 23763914, 4899258, 646542, 54324, 2805, 81, 1]

cp's OEIS Frontend

A291845 Triangle, read by rows, where the g.f. of row n equals Product_{k=0..n-1} (1 + (2k+1)x + x^2) for n>0 with a single '1' in row 0.

Table of values

List of values

cp's OEIS Frontend

A291845 Triangle, read by rows, where the g.f. of row n equals Product_{k=0..n-1} (1 + (2*k+1)*x + x^2) for n>0 with a single '1' in row 0.

Table of values

List of values

A291845 Triangle, read by rows, where the g.f. of row n equals Product_{k=0..n-1} (1 + (2k+1)x + x^2) for n>0 with a single '1' in row 0.