A364247 - cp's OEIS frontend

A364247 Squares visited by the chess king on a spiral-numbered board, where the king moves to the square with the fewest steps to reach 1 using the 3x+1 function. In case of a tie, the king moves to the square with the smallest number.

n	a(n)
1	1
2	2
3	4
4	16
5	5
6	6
7	8
8	24
9	10
10	26
11	48
12	80
13	120
14	168
15	122
16	170
17	226
18	227
19	228
20	172
21	173
22	174
23	232
24	176
25	128
26	88
27	56
28	90
29	92
30	136
31	93
32	58
33	32
34	13
35	3
36	12
37	11
38	28
39	52
40	84
41	85
42	53
43	29
44	30
45	31
46	57
47	89
48	130
49	180
50	181
51	131
52	132
53	133
54	184
55	244
56	186
57	245
58	312
59	246
60	314

[1, 2, 4, 16, 5, 6, 8, 24, 10, 26, 48, 80, 120, 168, 122, 170, 226, 227, 228, 172, 173, 174, 232, 176, 128, 88, 56, 90, 92, 136, 93, 58, 32, 13, 3, 12, 11, 28, 52, 84, 85, 53, 29, 30, 31, 57, 89, 130, 180, 181, 131, 132, 133, 184, 244, 186, 245, 312, 246, 314]

cp's OEIS Frontend

A364247 Squares visited by the chess king on a spiral-numbered board, where the king moves to the square with the fewest steps to reach 1 using the 3x+1 function. In case of a tie, the king moves to the square with the smallest number.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	16
5	5
6	6
7	8
8	24
9	10
10	26
11	48
12	80
13	120
14	168
15	122
16	170
17	226
18	227
19	228
20	172
21	173
22	174
23	232
24	176
25	128
26	88
27	56
28	90
29	92
30	136
31	93
32	58
33	32
34	13
35	3
36	12
37	11
38	28
39	52
40	84
41	85
42	53
43	29
44	30
45	31
46	57
47	89
48	130
49	180
50	181
51	131
52	132
53	133
54	184
55	244
56	186
57	245
58	312
59	246
60	314

n	a(n)
1	1
2	2
3	4
4	16
5	5
6	6
7	8
8	24
9	10
10	26
11	48
12	80
13	120
14	168
15	122
16	170
17	226
18	227
19	228
20	172
21	173
22	174
23	232
24	176
25	128
26	88
27	56
28	90
29	92
30	136
31	93
32	58
33	32
34	13
35	3
36	12
37	11
38	28
39	52
40	84
41	85
42	53
43	29
44	30
45	31
46	57
47	89
48	130
49	180
50	181
51	131
52	132
53	133
54	184
55	244
56	186
57	245
58	312
59	246
60	314

n	a(n)
1	1
2	2
3	4
4	16
5	5
6	6
7	8
8	24
9	10
10	26
11	48
12	80
13	120
14	168
15	122
16	170
17	226
18	227
19	228
20	172
21	173
22	174
23	232
24	176
25	128
26	88
27	56
28	90
29	92
30	136
31	93
32	58
33	32
34	13
35	3
36	12
37	11
38	28
39	52
40	84
41	85
42	53
43	29
44	30
45	31
46	57
47	89
48	130
49	180
50	181
51	131
52	132
53	133
54	184
55	244
56	186
57	245
58	312
59	246
60	314