A215028 - cp's OEIS frontend

A215028 a(1) = 1; for n >= 1, a(n+1) = (concatenation of n+1 and n) - a(n).

n	a(n)
1	1
2	20
3	12
4	31
5	23
6	42
7	34
8	53
9	45
10	64
11	1046
12	165
13	1147
14	266
15	1248
16	367
17	1349
18	468
19	1450
20	569
21	1551
22	670
23	1652
24	771
25	1753
26	872
27	1854
28	973
29	1955
30	1074
31	2056
32	1175
33	2157
34	1276
35	2258
36	1377
37	2359
38	1478
39	2460
40	1579
41	2561
42	1680
43	2662
44	1781
45	2763
46	1882
47	2864
48	1983

[1, 20, 12, 31, 23, 42, 34, 53, 45, 64, 1046, 165, 1147, 266, 1248, 367, 1349, 468, 1450, 569, 1551, 670, 1652, 771, 1753, 872, 1854, 973, 1955, 1074, 2056, 1175, 2157, 1276, 2258, 1377, 2359, 1478, 2460, 1579, 2561, 1680, 2662, 1781, 2763, 1882, 2864, 1983]

cp's OEIS Frontend

A215028 a(1) = 1; for n >= 1, a(n+1) = (concatenation of n+1 and n) - a(n).

Table of values

List of values