A231921 - cp's OEIS frontend

A231921 Terms of A231920 written in base 10: the binary expansions of a(n) and a(n+1) taken together can be rearranged to form a palindrome.

n	a(n)
0	0
1	4
2	1
3	3
4	9
5	5
6	2
7	6
8	10
9	8
10	12
11	20
12	24
13	27
14	11
15	7
16	13
17	17
18	23
19	25
20	28
21	14
22	16
23	18
24	22
25	26
26	29
27	15
28	19
29	21
30	31
31	35
32	37
33	39
34	47
35	51
36	59
37	61
38	65
39	69
40	73
41	75
42	81
43	30
44	36
45	40
46	44
47	50
48	52
49	56
50	60
51	68
52	70
53	72
54	76
55	80
56	82
57	32
58	34
59	38
60	42
61	46
62	48
63	54
64	58
65	62
66	64
67	66
68	74
69	78

[0, 4, 1, 3, 9, 5, 2, 6, 10, 8, 12, 20, 24, 27, 11, 7, 13, 17, 23, 25, 28, 14, 16, 18, 22, 26, 29, 15, 19, 21, 31, 35, 37, 39, 47, 51, 59, 61, 65, 69, 73, 75, 81, 30, 36, 40, 44, 50, 52, 56, 60, 68, 70, 72, 76, 80, 82, 32, 34, 38, 42, 46, 48, 54, 58, 62, 64, 66, 74, 78]

cp's OEIS Frontend

A231921 Terms of A231920 written in base 10: the binary expansions of a(n) and a(n+1) taken together can be rearranged to form a palindrome.

Table of values

List of values

n	a(n)
0	0
1	4
2	1
3	3
4	9
5	5
6	2
7	6
8	10
9	8
10	12
11	20
12	24
13	27
14	11
15	7
16	13
17	17
18	23
19	25
20	28
21	14
22	16
23	18
24	22
25	26
26	29
27	15
28	19
29	21
30	31
31	35
32	37
33	39
34	47
35	51
36	59
37	61
38	65
39	69
40	73
41	75
42	81
43	30
44	36
45	40
46	44
47	50
48	52
49	56
50	60
51	68
52	70
53	72
54	76
55	80
56	82
57	32
58	34
59	38
60	42
61	46
62	48
63	54
64	58
65	62
66	64
67	66
68	74
69	78

n	a(n)
0	0
1	4
2	1
3	3
4	9
5	5
6	2
7	6
8	10
9	8
10	12
11	20
12	24
13	27
14	11
15	7
16	13
17	17
18	23
19	25
20	28
21	14
22	16
23	18
24	22
25	26
26	29
27	15
28	19
29	21
30	31
31	35
32	37
33	39
34	47
35	51
36	59
37	61
38	65
39	69
40	73
41	75
42	81
43	30
44	36
45	40
46	44
47	50
48	52
49	56
50	60
51	68
52	70
53	72
54	76
55	80
56	82
57	32
58	34
59	38
60	42
61	46
62	48
63	54
64	58
65	62
66	64
67	66
68	74
69	78

n	a(n)
0	0
1	4
2	1
3	3
4	9
5	5
6	2
7	6
8	10
9	8
10	12
11	20
12	24
13	27
14	11
15	7
16	13
17	17
18	23
19	25
20	28
21	14
22	16
23	18
24	22
25	26
26	29
27	15
28	19
29	21
30	31
31	35
32	37
33	39
34	47
35	51
36	59
37	61
38	65
39	69
40	73
41	75
42	81
43	30
44	36
45	40
46	44
47	50
48	52
49	56
50	60
51	68
52	70
53	72
54	76
55	80
56	82
57	32
58	34
59	38
60	42
61	46
62	48
63	54
64	58
65	62
66	64
67	66
68	74
69	78