A152800 - cp's OEIS frontend

A152800 Irregular triangle read by rows: the q-analog of the Euler numbers; expansion of the arithmetic inverse of the q-cosine of x.

n	a(n)
0	1
1	1
2	0
3	1
4	2
5	1
6	1
7	0
8	0
9	1
10	3
11	5
12	8
13	10
14	10
15	9
16	7
17	5
18	2
19	1
20	0
21	0
22	0
23	1
24	4
25	10
26	21
27	36
28	55
29	78
30	101
31	122
32	138
33	145
34	143
35	134
36	117
37	95
38	72
39	50
40	32
41	18
42	9
43	3
44	1
45	0
46	0
47	0
48	0
49	1
50	5
51	16
52	41
53	87
54	164
55	283
56	452
57	679
58	967
59	1311
60	1700
61	2118
62	2540
63	2937
64	3282
65	3546
66	3706
67	3751
68	3676
69	3487

[1, 1, 0, 1, 2, 1, 1, 0, 0, 1, 3, 5, 8, 10, 10, 9, 7, 5, 2, 1, 0, 0, 0, 1, 4, 10, 21, 36, 55, 78, 101, 122, 138, 145, 143, 134, 117, 95, 72, 50, 32, 18, 9, 3, 1, 0, 0, 0, 0, 1, 5, 16, 41, 87, 164, 283, 452, 679, 967, 1311, 1700, 2118, 2540, 2937, 3282, 3546, 3706, 3751, 3676, 3487]

cp's OEIS Frontend

A152800 Irregular triangle read by rows: the q-analog of the Euler numbers; expansion of the arithmetic inverse of the q-cosine of x.

Table of values

List of values