A337880 - cp's OEIS frontend

A337880 Lexicographically earliest sequence of distinct positive integers such that the sum of a(n) and [a(n+1) reversed] is a palindrome in base 10 (terms ending in zero permitted).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	10
8	19
9	28
10	17
11	48
12	7
13	18
14	38
15	16
16	27
17	47
18	8
19	30
20	41
21	52
22	63
23	83
24	50
25	15
26	26
27	37
28	46
29	9
30	20
31	31
32	42
33	53
34	64
35	73
36	40
37	51
38	62
39	93
40	60
41	14
42	25
43	36
44	56
45	12
46	23
47	34
48	45
49	65
50	21
51	32
52	43
53	54
54	74
55	72
56	61
57	102
58	90
59	11
60	22
61	33
62	44
63	55
64	66
65	57
66	13
67	24
68	35
69	67
70	49
71	29
72	84
73	71

[1, 2, 3, 4, 5, 6, 10, 19, 28, 17, 48, 7, 18, 38, 16, 27, 47, 8, 30, 41, 52, 63, 83, 50, 15, 26, 37, 46, 9, 20, 31, 42, 53, 64, 73, 40, 51, 62, 93, 60, 14, 25, 36, 56, 12, 23, 34, 45, 65, 21, 32, 43, 54, 74, 72, 61, 102, 90, 11, 22, 33, 44, 55, 66, 57, 13, 24, 35, 67, 49, 29, 84, 71]

cp's OEIS Frontend

A337880 Lexicographically earliest sequence of distinct positive integers such that the sum of a(n) and [a(n+1) reversed] is a palindrome in base 10 (terms ending in zero permitted).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	10
8	19
9	28
10	17
11	48
12	7
13	18
14	38
15	16
16	27
17	47
18	8
19	30
20	41
21	52
22	63
23	83
24	50
25	15
26	26
27	37
28	46
29	9
30	20
31	31
32	42
33	53
34	64
35	73
36	40
37	51
38	62
39	93
40	60
41	14
42	25
43	36
44	56
45	12
46	23
47	34
48	45
49	65
50	21
51	32
52	43
53	54
54	74
55	72
56	61
57	102
58	90
59	11
60	22
61	33
62	44
63	55
64	66
65	57
66	13
67	24
68	35
69	67
70	49
71	29
72	84
73	71

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	10
8	19
9	28
10	17
11	48
12	7
13	18
14	38
15	16
16	27
17	47
18	8
19	30
20	41
21	52
22	63
23	83
24	50
25	15
26	26
27	37
28	46
29	9
30	20
31	31
32	42
33	53
34	64
35	73
36	40
37	51
38	62
39	93
40	60
41	14
42	25
43	36
44	56
45	12
46	23
47	34
48	45
49	65
50	21
51	32
52	43
53	54
54	74
55	72
56	61
57	102
58	90
59	11
60	22
61	33
62	44
63	55
64	66
65	57
66	13
67	24
68	35
69	67
70	49
71	29
72	84
73	71

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	10
8	19
9	28
10	17
11	48
12	7
13	18
14	38
15	16
16	27
17	47
18	8
19	30
20	41
21	52
22	63
23	83
24	50
25	15
26	26
27	37
28	46
29	9
30	20
31	31
32	42
33	53
34	64
35	73
36	40
37	51
38	62
39	93
40	60
41	14
42	25
43	36
44	56
45	12
46	23
47	34
48	45
49	65
50	21
51	32
52	43
53	54
54	74
55	72
56	61
57	102
58	90
59	11
60	22
61	33
62	44
63	55
64	66
65	57
66	13
67	24
68	35
69	67
70	49
71	29
72	84
73	71