A075523 - cp's OEIS frontend

A075523 First nonprime reached when starting with the n-th prime p and iterating the map k -> 4*k+(p mod 4), or -1 if no integer is ever reached.

n	a(n)
1	10
2	15
3	21
4	511
5	767
6	213
7	69
8	319
9	95
10	117
11	511
12	597
13	165
14	175
15	767
16	213
17	959
18	245
19	4351
20	287
21	1173
22	319
23	335
24	357
25	1557
26	405
27	415
28	1727
29	437
30	453
31	511
32	527
33	549
34	559
35	597
36	2431
37	629
38	655
39	671
40	693
41	46079
42	725
43	767
44	3093
45	789
46	799
47	847
48	895
49	3647
50	917

[10, 15, 21, 511, 767, 213, 69, 319, 95, 117, 511, 597, 165, 175, 767, 213, 959, 245, 4351, 287, 1173, 319, 335, 357, 1557, 405, 415, 1727, 437, 453, 511, 527, 549, 559, 597, 2431, 629, 655, 671, 693, 46079, 725, 767, 3093, 789, 799, 847, 895, 3647, 917]

cp's OEIS Frontend

A075523 First nonprime reached when starting with the n-th prime p and iterating the map k -> 4*k+(p mod 4), or -1 if no integer is ever reached.

Table of values

List of values