A336402 - cp's OEIS frontend

A336402 Squares visited by a chess queen moving on a square-spiral numbered board where the queen moves to the closest unvisited square containing a prime number. In case of a tie it chooses the square with the smallest prime number.

n	a(n)
1	1
2	2
3	3
4	11
5	29
6	13
7	31
8	59
9	61
10	97
11	139
12	191
13	251
14	193
15	101
16	103
17	67
18	37
19	17
20	5
21	19
22	7
23	23
24	47
25	79
26	163
27	281
28	353
29	283
30	433
31	521
32	617
33	523
34	619
35	439
36	359
37	223
38	167
39	227
40	293
41	229
42	173
43	83
44	233
45	127
46	53
47	179
48	131
49	89
50	137
51	389
52	313
53	311
54	467
55	383
56	307
57	241
58	239
59	181
60	457
61	547
62	643

[1, 2, 3, 11, 29, 13, 31, 59, 61, 97, 139, 191, 251, 193, 101, 103, 67, 37, 17, 5, 19, 7, 23, 47, 79, 163, 281, 353, 283, 433, 521, 617, 523, 619, 439, 359, 223, 167, 227, 293, 229, 173, 83, 233, 127, 53, 179, 131, 89, 137, 389, 313, 311, 467, 383, 307, 241, 239, 181, 457, 547, 643]

cp's OEIS Frontend

A336402 Squares visited by a chess queen moving on a square-spiral numbered board where the queen moves to the closest unvisited square containing a prime number. In case of a tie it chooses the square with the smallest prime number.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	11
5	29
6	13
7	31
8	59
9	61
10	97
11	139
12	191
13	251
14	193
15	101
16	103
17	67
18	37
19	17
20	5
21	19
22	7
23	23
24	47
25	79
26	163
27	281
28	353
29	283
30	433
31	521
32	617
33	523
34	619
35	439
36	359
37	223
38	167
39	227
40	293
41	229
42	173
43	83
44	233
45	127
46	53
47	179
48	131
49	89
50	137
51	389
52	313
53	311
54	467
55	383
56	307
57	241
58	239
59	181
60	457
61	547
62	643

n	a(n)
1	1
2	2
3	3
4	11
5	29
6	13
7	31
8	59
9	61
10	97
11	139
12	191
13	251
14	193
15	101
16	103
17	67
18	37
19	17
20	5
21	19
22	7
23	23
24	47
25	79
26	163
27	281
28	353
29	283
30	433
31	521
32	617
33	523
34	619
35	439
36	359
37	223
38	167
39	227
40	293
41	229
42	173
43	83
44	233
45	127
46	53
47	179
48	131
49	89
50	137
51	389
52	313
53	311
54	467
55	383
56	307
57	241
58	239
59	181
60	457
61	547
62	643

n	a(n)
1	1
2	2
3	3
4	11
5	29
6	13
7	31
8	59
9	61
10	97
11	139
12	191
13	251
14	193
15	101
16	103
17	67
18	37
19	17
20	5
21	19
22	7
23	23
24	47
25	79
26	163
27	281
28	353
29	283
30	433
31	521
32	617
33	523
34	619
35	439
36	359
37	223
38	167
39	227
40	293
41	229
42	173
43	83
44	233
45	127
46	53
47	179
48	131
49	89
50	137
51	389
52	313
53	311
54	467
55	383
56	307
57	241
58	239
59	181
60	457
61	547
62	643