A344129 - cp's OEIS frontend

A344129 The minimum number of steps required for a knight, starting at the central square numbered 1, to reach the square numbered n on a square-spiral numbered board.

n	a(n)
1	0
2	3
3	2
4	3
5	2
6	3
7	2
8	3
9	2
10	1
11	2
12	1
13	4
14	1
15	2
16	1
17	4
18	1
19	2
20	1
21	4
22	1
23	2
24	1
25	4
26	3
27	2
28	3
29	2
30	3
31	2
32	3
33	2
34	3
35	2
36	3
37	2
38	3
39	2
40	3
41	2
42	3
43	2
44	3
45	2
46	3
47	2
48	3
49	2
50	3
51	2
52	3
53	2
54	3
55	2
56	3
57	4
58	3
59	2
60	3
61	2
62	3
63	2
64	3
65	4
66	3
67	2
68	3
69	2
70	3
71	2
72	3
73	4
74	3
75	2
76	3
77	2
78	3
79	2
80	3
81	4
82	3
83	4
84	3
85	4
86	3
87	4
88	3
89	4
90	3
91	4
92	3
93	4
94	3
95	4
96	3
97	4
98	3
99	4
100	3

[0, 3, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 4, 3, 2, 3, 2, 3, 2, 3, 4, 3, 2, 3, 2, 3, 2, 3, 4, 3, 2, 3, 2, 3, 2, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3]

cp's OEIS Frontend

A344129 The minimum number of steps required for a knight, starting at the central square numbered 1, to reach the square numbered n on a square-spiral numbered board.

Table of values

List of values

n	a(n)
1	0
2	3
3	2
4	3
5	2
6	3
7	2
8	3
9	2
10	1
11	2
12	1
13	4
14	1
15	2
16	1
17	4
18	1
19	2
20	1
21	4
22	1
23	2
24	1
25	4
26	3
27	2
28	3
29	2
30	3
31	2
32	3
33	2
34	3
35	2
36	3
37	2
38	3
39	2
40	3
41	2
42	3
43	2
44	3
45	2
46	3
47	2
48	3
49	2
50	3
51	2
52	3
53	2
54	3
55	2
56	3
57	4
58	3
59	2
60	3
61	2
62	3
63	2
64	3
65	4
66	3
67	2
68	3
69	2
70	3
71	2
72	3
73	4
74	3
75	2
76	3
77	2
78	3
79	2
80	3
81	4
82	3
83	4
84	3
85	4
86	3
87	4
88	3
89	4
90	3
91	4
92	3
93	4
94	3
95	4
96	3
97	4
98	3
99	4
100	3

n	a(n)
1	0
2	3
3	2
4	3
5	2
6	3
7	2
8	3
9	2
10	1
11	2
12	1
13	4
14	1
15	2
16	1
17	4
18	1
19	2
20	1
21	4
22	1
23	2
24	1
25	4
26	3
27	2
28	3
29	2
30	3
31	2
32	3
33	2
34	3
35	2
36	3
37	2
38	3
39	2
40	3
41	2
42	3
43	2
44	3
45	2
46	3
47	2
48	3
49	2
50	3
51	2
52	3
53	2
54	3
55	2
56	3
57	4
58	3
59	2
60	3
61	2
62	3
63	2
64	3
65	4
66	3
67	2
68	3
69	2
70	3
71	2
72	3
73	4
74	3
75	2
76	3
77	2
78	3
79	2
80	3
81	4
82	3
83	4
84	3
85	4
86	3
87	4
88	3
89	4
90	3
91	4
92	3
93	4
94	3
95	4
96	3
97	4
98	3
99	4
100	3

n	a(n)
1	0
2	3
3	2
4	3
5	2
6	3
7	2
8	3
9	2
10	1
11	2
12	1
13	4
14	1
15	2
16	1
17	4
18	1
19	2
20	1
21	4
22	1
23	2
24	1
25	4
26	3
27	2
28	3
29	2
30	3
31	2
32	3
33	2
34	3
35	2
36	3
37	2
38	3
39	2
40	3
41	2
42	3
43	2
44	3
45	2
46	3
47	2
48	3
49	2
50	3
51	2
52	3
53	2
54	3
55	2
56	3
57	4
58	3
59	2
60	3
61	2
62	3
63	2
64	3
65	4
66	3
67	2
68	3
69	2
70	3
71	2
72	3
73	4
74	3
75	2
76	3
77	2
78	3
79	2
80	3
81	4
82	3
83	4
84	3
85	4
86	3
87	4
88	3
89	4
90	3
91	4
92	3
93	4
94	3
95	4
96	3
97	4
98	3
99	4
100	3