A161372 - cp's OEIS frontend

A161372 In Ulam's spiral starting at 101, take the elements not used so far from the two spokes SW, NE, SW, NE, SW, NE ...

n	a(n)
1	107
2	101
3	121
4	103
5	143
6	113
7	173
8	131
9	211
10	157
11	257
12	191
13	311
14	233
15	373
16	283
17	443
18	341
19	521
20	407
21	607
22	481
23	701
24	563
25	803
26	653
27	913
28	751
29	1031
30	857
31	1157
32	971
33	1291
34	1093
35	1433
36	1223
37	1583
38	1361
39	1741
40	1507
41	1907
42	1661
43	2081
44	1823
45	2263
46	1993
47	2453

[107, 101, 121, 103, 143, 113, 173, 131, 211, 157, 257, 191, 311, 233, 373, 283, 443, 341, 521, 407, 607, 481, 701, 563, 803, 653, 913, 751, 1031, 857, 1157, 971, 1291, 1093, 1433, 1223, 1583, 1361, 1741, 1507, 1907, 1661, 2081, 1823, 2263, 1993, 2453]

cp's OEIS Frontend

A161372 In Ulam's spiral starting at 101, take the elements not used so far from the two spokes SW, NE, SW, NE, SW, NE ...

Table of values

List of values