A085924 - cp's OEIS frontend

A085924 If k = product (p_i)^(r_i), where p_i are primes in increasing order, then k is a member if concatenation of r_i as decimal numbers forms a palindrome.

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	29
24	30
25	31
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	41
35	42
36	43
37	46
38	47
39	49
40	51
41	53
42	55
43	57
44	58
45	59
46	61
47	62
48	64
49	65
50	66
51	67
52	69
53	70
54	71
55	73
56	74
57	77
58	78
59	79
60	81
61	82
62	83
63	85
64	86
65	87
66	89
67	90
68	91
69	93
70	94
71	95

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 46, 47, 49, 51, 53, 55, 57, 58, 59, 61, 62, 64, 65, 66, 67, 69, 70, 71, 73, 74, 77, 78, 79, 81, 82, 83, 85, 86, 87, 89, 90, 91, 93, 94, 95]

cp's OEIS Frontend

A085924 If k = product (p_i)^(r_i), where p_i are primes in increasing order, then k is a member if concatenation of r_i as decimal numbers forms a palindrome.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	29
24	30
25	31
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	41
35	42
36	43
37	46
38	47
39	49
40	51
41	53
42	55
43	57
44	58
45	59
46	61
47	62
48	64
49	65
50	66
51	67
52	69
53	70
54	71
55	73
56	74
57	77
58	78
59	79
60	81
61	82
62	83
63	85
64	86
65	87
66	89
67	90
68	91
69	93
70	94
71	95

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	29
24	30
25	31
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	41
35	42
36	43
37	46
38	47
39	49
40	51
41	53
42	55
43	57
44	58
45	59
46	61
47	62
48	64
49	65
50	66
51	67
52	69
53	70
54	71
55	73
56	74
57	77
58	78
59	79
60	81
61	82
62	83
63	85
64	86
65	87
66	89
67	90
68	91
69	93
70	94
71	95

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	29
24	30
25	31
26	32
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	41
35	42
36	43
37	46
38	47
39	49
40	51
41	53
42	55
43	57
44	58
45	59
46	61
47	62
48	64
49	65
50	66
51	67
52	69
53	70
54	71
55	73
56	74
57	77
58	78
59	79
60	81
61	82
62	83
63	85
64	86
65	87
66	89
67	90
68	91
69	93
70	94
71	95