A054200 - cp's OEIS frontend

A054200 Number of binary vectors (x_1,...x_n) satisfying Sum_{i=1..n} i*x_i = 3 (mod n+1) = size of Varshamov-Tenengolts code VT_3(n).

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	6
6	9
7	16
8	29
9	51
10	93
11	172
12	315
13	585
14	1094
15	2048
16	3855
17	7285
18	13797
19	26214
20	49938
21	95325
22	182361
23	349536
24	671088
25	1290555
26	2485532
27	4793490
28	9256395
29	17895730
30	34636833
31	67108864
32	130150586
33	252645135
34	490853403

[1, 1, 2, 2, 3, 6, 9, 16, 29, 51, 93, 172, 315, 585, 1094, 2048, 3855, 7285, 13797, 26214, 49938, 95325, 182361, 349536, 671088, 1290555, 2485532, 4793490, 9256395, 17895730, 34636833, 67108864, 130150586, 252645135, 490853403]

cp's OEIS Frontend

A054200 Number of binary vectors (x_1,...x_n) satisfying Sum_{i=1..n} i*x_i = 3 (mod n+1) = size of Varshamov-Tenengolts code VT_3(n).

Table of values

List of values