A359142 - cp's OEIS frontend

A359142 Let s = sum of digits of n, let t = decimal concatenation of n and s, let u be obtained by deleting all copies of the leading digit of t from t, if this digit occurs in s. Then if u has only zero digits, a(n) = 0; if u has leading digit 0 but not all its digits are 0, delete all leading 0's from u and negate the result to get a(n); otherwise a(n) = u.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	112
12	123
13	134
14	145
15	156
16	167
17	178
18	189
19	90
20	0
21	213
22	224
23	235
24	246
25	257
26	268
27	279
28	2810
29	2911
30	0
31	314
32	325
33	336
34	347
35	358
36	369
37	3710
38	3811
39	3912
40	0
41	415
42	426
43	437
44	448
45	459
46	4610
47	4711
48	4812
49	4913
50	0
51	516
52	527
53	538
54	549
55	5510
56	5611
57	5712
58	5813

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 112, 123, 134, 145, 156, 167, 178, 189, 90, 0, 213, 224, 235, 246, 257, 268, 279, 2810, 2911, 0, 314, 325, 336, 347, 358, 369, 3710, 3811, 3912, 0, 415, 426, 437, 448, 459, 4610, 4711, 4812, 4913, 0, 516, 527, 538, 549, 5510, 5611, 5712, 5813]

cp's OEIS Frontend

Table of values

List of values