A380272 - cp's OEIS frontend

A380272 a(n) is the number of integers k in 0..n such that the nonadjacent forms for n-k and k can be added without carries (see Comments section for exact definition).

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	4
6	2
7	2
8	6
9	4
10	4
11	2
12	4
13	4
14	2
15	6
16	12
17	8
18	4
19	6
20	10
21	8
22	2
23	2
24	6
25	4
26	4
27	2
28	4
29	4
30	6
31	10
32	22
33	12
34	8
35	6
36	10
37	8
38	6
39	6
40	16
41	8
42	8
43	2
44	4
45	4
46	2
47	6
48	12
49	8
50	4
51	6
52	10
53	8
54	2
55	2
56	6
57	4
58	4
59	10
60	16
61	12
62	10
63	22
64	44
65	24
66	12
67	14
68	22
69	16
70	6
71	6
72	16
73	8
74	8
75	10
76	16
77	12
78	6

[1, 2, 2, 2, 4, 4, 2, 2, 6, 4, 4, 2, 4, 4, 2, 6, 12, 8, 4, 6, 10, 8, 2, 2, 6, 4, 4, 2, 4, 4, 6, 10, 22, 12, 8, 6, 10, 8, 6, 6, 16, 8, 8, 2, 4, 4, 2, 6, 12, 8, 4, 6, 10, 8, 2, 2, 6, 4, 4, 10, 16, 12, 10, 22, 44, 24, 12, 14, 22, 16, 6, 6, 16, 8, 8, 10, 16, 12, 6]

cp's OEIS Frontend

A380272 a(n) is the number of integers k in 0..n such that the nonadjacent forms for n-k and k can be added without carries (see Comments section for exact definition).

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	4
6	2
7	2
8	6
9	4
10	4
11	2
12	4
13	4
14	2
15	6
16	12
17	8
18	4
19	6
20	10
21	8
22	2
23	2
24	6
25	4
26	4
27	2
28	4
29	4
30	6
31	10
32	22
33	12
34	8
35	6
36	10
37	8
38	6
39	6
40	16
41	8
42	8
43	2
44	4
45	4
46	2
47	6
48	12
49	8
50	4
51	6
52	10
53	8
54	2
55	2
56	6
57	4
58	4
59	10
60	16
61	12
62	10
63	22
64	44
65	24
66	12
67	14
68	22
69	16
70	6
71	6
72	16
73	8
74	8
75	10
76	16
77	12
78	6

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	4
6	2
7	2
8	6
9	4
10	4
11	2
12	4
13	4
14	2
15	6
16	12
17	8
18	4
19	6
20	10
21	8
22	2
23	2
24	6
25	4
26	4
27	2
28	4
29	4
30	6
31	10
32	22
33	12
34	8
35	6
36	10
37	8
38	6
39	6
40	16
41	8
42	8
43	2
44	4
45	4
46	2
47	6
48	12
49	8
50	4
51	6
52	10
53	8
54	2
55	2
56	6
57	4
58	4
59	10
60	16
61	12
62	10
63	22
64	44
65	24
66	12
67	14
68	22
69	16
70	6
71	6
72	16
73	8
74	8
75	10
76	16
77	12
78	6

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	4
6	2
7	2
8	6
9	4
10	4
11	2
12	4
13	4
14	2
15	6
16	12
17	8
18	4
19	6
20	10
21	8
22	2
23	2
24	6
25	4
26	4
27	2
28	4
29	4
30	6
31	10
32	22
33	12
34	8
35	6
36	10
37	8
38	6
39	6
40	16
41	8
42	8
43	2
44	4
45	4
46	2
47	6
48	12
49	8
50	4
51	6
52	10
53	8
54	2
55	2
56	6
57	4
58	4
59	10
60	16
61	12
62	10
63	22
64	44
65	24
66	12
67	14
68	22
69	16
70	6
71	6
72	16
73	8
74	8
75	10
76	16
77	12
78	6