A211525 - cp's OEIS frontend

A211525 Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two or four distinct values for every i,j,k<=n.

n	a(n)
1	8
2	14
3	24
4	44
5	80
6	152
7	288
8	560
9	1088
10	2144
11	4224
12	8384
13	16640
14	33152
15	66048
16	131840
17	263168
18	525824
19	1050624
20	2100224
21	4198400
22	8394752
23	16785408
24	33566720
25	67125248
26	134242304
27	268468224
28	536920064
29	1073807360
30	2147581952
31	4295098368

[8, 14, 24, 44, 80, 152, 288, 560, 1088, 2144, 4224, 8384, 16640, 33152, 66048, 131840, 263168, 525824, 1050624, 2100224, 4198400, 8394752, 16785408, 33566720, 67125248, 134242304, 268468224, 536920064, 1073807360, 2147581952, 4295098368]

cp's OEIS Frontend

A211525 Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two or four distinct values for every i,j,k<=n.

Table of values

List of values