A200454 - cp's OEIS frontend

A200454 T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.

n	a(n)
1	4
2	10
3	4
4	26
5	44
6	6
7	44
8	142
9	144
10	10
11	72
12	342
13	728
14	486
15	14
16	102
17	678
18	2334
19	3788
20	1582
21	22
22	142
23	1148
24	5720
25	16380
26	19802
27	5478
28	34
29	184
30	1832
31	12002
32	50852
33	115140
34	103726
35	18692
36	52
37	236
38	2744
39	22276
40	127988
41	451708
42	820650
43	548204
44	64782
45	80
46	290
47	3874

[4, 10, 4, 26, 44, 6, 44, 142, 144, 10, 72, 342, 728, 486, 14, 102, 678, 2334, 3788, 1582, 22, 142, 1148, 5720, 16380, 19802, 5478, 34, 184, 1832, 12002, 50852, 115140, 103726, 18692, 52, 236, 2744, 22276, 127988, 451708, 820650, 548204, 64782, 80, 290, 3874]

cp's OEIS Frontend

A200454 T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.

Table of values

List of values