A342303 - cp's OEIS frontend

A342303 a(0) = 1; for n >= 1, a(n) = the decimal value of the binary number of the total binary digits back from the end of the concatenation of all previous binary terms where the binary value of n last appeared. If the binary value of n has not previously appeared then a(n) = 0.

n	a(n)
0	1
1	1
2	0
3	3
4	0
5	5
6	6
7	4
8	0
9	0
10	7
11	14
12	0
13	16
14	10
15	15
16	13
17	0
18	21
19	0
20	39
21	10
22	58
23	8
24	0
25	49
26	16
27	81
28	68
29	36
30	49
31	72
32	0
33	39
34	33
35	25
36	25
37	0
38	40
39	16
40	11
41	106
42	6
43	7
44	0
45	9
46	10
47	26
48	60
49	85
50	11
51	70
52	40
53	9
54	214
55	30
56	32
57	52
58	16
59	0
60	65
61	30
62	6
63	226
64	0
65	24
66	130
67	161
68	20
69	0
70	99
71	0
72	68
73	216
74	136
75	0
76	62
77	26
78	129

[1, 1, 0, 3, 0, 5, 6, 4, 0, 0, 7, 14, 0, 16, 10, 15, 13, 0, 21, 0, 39, 10, 58, 8, 0, 49, 16, 81, 68, 36, 49, 72, 0, 39, 33, 25, 25, 0, 40, 16, 11, 106, 6, 7, 0, 9, 10, 26, 60, 85, 11, 70, 40, 9, 214, 30, 32, 52, 16, 0, 65, 30, 6, 226, 0, 24, 130, 161, 20, 0, 99, 0, 68, 216, 136, 0, 62, 26, 129]

cp's OEIS Frontend

A342303 a(0) = 1; for n >= 1, a(n) = the decimal value of the binary number of the total binary digits back from the end of the concatenation of all previous binary terms where the binary value of n last appeared. If the binary value of n has not previously appeared then a(n) = 0.

Table of values

List of values

n	a(n)
0	1
1	1
2	0
3	3
4	0
5	5
6	6
7	4
8	0
9	0
10	7
11	14
12	0
13	16
14	10
15	15
16	13
17	0
18	21
19	0
20	39
21	10
22	58
23	8
24	0
25	49
26	16
27	81
28	68
29	36
30	49
31	72
32	0
33	39
34	33
35	25
36	25
37	0
38	40
39	16
40	11
41	106
42	6
43	7
44	0
45	9
46	10
47	26
48	60
49	85
50	11
51	70
52	40
53	9
54	214
55	30
56	32
57	52
58	16
59	0
60	65
61	30
62	6
63	226
64	0
65	24
66	130
67	161
68	20
69	0
70	99
71	0
72	68
73	216
74	136
75	0
76	62
77	26
78	129

n	a(n)
0	1
1	1
2	0
3	3
4	0
5	5
6	6
7	4
8	0
9	0
10	7
11	14
12	0
13	16
14	10
15	15
16	13
17	0
18	21
19	0
20	39
21	10
22	58
23	8
24	0
25	49
26	16
27	81
28	68
29	36
30	49
31	72
32	0
33	39
34	33
35	25
36	25
37	0
38	40
39	16
40	11
41	106
42	6
43	7
44	0
45	9
46	10
47	26
48	60
49	85
50	11
51	70
52	40
53	9
54	214
55	30
56	32
57	52
58	16
59	0
60	65
61	30
62	6
63	226
64	0
65	24
66	130
67	161
68	20
69	0
70	99
71	0
72	68
73	216
74	136
75	0
76	62
77	26
78	129

n	a(n)
0	1
1	1
2	0
3	3
4	0
5	5
6	6
7	4
8	0
9	0
10	7
11	14
12	0
13	16
14	10
15	15
16	13
17	0
18	21
19	0
20	39
21	10
22	58
23	8
24	0
25	49
26	16
27	81
28	68
29	36
30	49
31	72
32	0
33	39
34	33
35	25
36	25
37	0
38	40
39	16
40	11
41	106
42	6
43	7
44	0
45	9
46	10
47	26
48	60
49	85
50	11
51	70
52	40
53	9
54	214
55	30
56	32
57	52
58	16
59	0
60	65
61	30
62	6
63	226
64	0
65	24
66	130
67	161
68	20
69	0
70	99
71	0
72	68
73	216
74	136
75	0
76	62
77	26
78	129