A089949 - cp's OEIS frontend

A089949 Triangle T(n,k), read by rows, given by [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...] DELTA [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, ...] where DELTA is the operator defined in A084938.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	6
9	6
10	0
11	1
12	12
13	34
14	24
15	0
16	1
17	20
18	110
19	210
20	120
21	0
22	1
23	30
24	270
25	974
26	1452
27	720
28	0
29	1
30	42
31	560
32	3248
33	8946
34	11256
35	5040
36	0
37	1
38	56
39	1036
40	8792
41	38338
42	87504
43	97296
44	40320
45	0
46	1
47	72
48	1764
49	20580
50	129834
51	463050
52	920184
53	930960
54	362880

[1, 0, 1, 0, 1, 2, 0, 1, 6, 6, 0, 1, 12, 34, 24, 0, 1, 20, 110, 210, 120, 0, 1, 30, 270, 974, 1452, 720, 0, 1, 42, 560, 3248, 8946, 11256, 5040, 0, 1, 56, 1036, 8792, 38338, 87504, 97296, 40320, 0, 1, 72, 1764, 20580, 129834, 463050, 920184, 930960, 362880]

cp's OEIS Frontend

A089949 Triangle T(n,k), read by rows, given by [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...] DELTA [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, ...] where DELTA is the operator defined in A084938.

Table of values

List of values