A268721 - cp's OEIS frontend

A268721 Convolution of A006068 (inverse of Gray code) with itself: a(n) = Sum_{k=1..n+1} A006068(k) * A006068(1+n-k).

n	a(n)
0	0
1	1
2	6
3	13
4	26
5	58
6	72
7	107
8	160
9	230
10	286
11	440
12	558
13	599
14	696
15	851
16	1032
17	1298
18	1510
19	1826
20	2122
21	2353
22	2624
23	3294
24	3884
25	4335
26	4870
27	5001
28	5242
29	5722
30	6048
31	6699
32	7424
33	8226
34	8990
35	10166
36	11226
37	12069
38	13048
39	14384
40	15664
41	16885
42	18134
43	19071
44	20094
45	21276
46	22360
47	25150
48	27788
49	30091
50	32582
51	34343
52	36262

[0, 1, 6, 13, 26, 58, 72, 107, 160, 230, 286, 440, 558, 599, 696, 851, 1032, 1298, 1510, 1826, 2122, 2353, 2624, 3294, 3884, 4335, 4870, 5001, 5242, 5722, 6048, 6699, 7424, 8226, 8990, 10166, 11226, 12069, 13048, 14384, 15664, 16885, 18134, 19071, 20094, 21276, 22360, 25150, 27788, 30091, 32582, 34343, 36262]

cp's OEIS Frontend

A268721 Convolution of A006068 (inverse of Gray code) with itself: a(n) = Sum_{k=1..n+1} A006068(k) * A006068(1+n-k).

Table of values

List of values