A258080 - cp's OEIS frontend

A258080 a(n) = ((n concatenated with n+1) + (n+1 concatenated with n)) mod n*(n+1).

n	a(n)
1	1
2	1
3	5
4	19
5	1
6	17
7	53
8	43
9	29
10	31
11	79
12	29
13	179
14	199
15	11
16	69
17	169
18	317
19	139
20	361
21	185
22	497
23	331
24	149
25	601
26	439
27	263
28	73
29	739
30	581
31	411
32	229
33	35
34	1019
35	871
36	713
37	545
38	367
39	179
40	1621
41	1495
42	1361
43	1219
44	1069
45	911
46	745
47	571
48	389
49	199
50	1
51	2447
52	2337
53	2221
54	2099

[1, 1, 5, 19, 1, 17, 53, 43, 29, 31, 79, 29, 179, 199, 11, 69, 169, 317, 139, 361, 185, 497, 331, 149, 601, 439, 263, 73, 739, 581, 411, 229, 35, 1019, 871, 713, 545, 367, 179, 1621, 1495, 1361, 1219, 1069, 911, 745, 571, 389, 199, 1, 2447, 2337, 2221, 2099]

cp's OEIS Frontend

A258080 a(n) = ((n concatenated with n+1) + (n+1 concatenated with n)) mod n*(n+1).

Table of values

List of values