A308312 - cp's OEIS frontend

A308312 a(n) is the last square visited by knight moves on a spirally numbered (2n-1) X (2n-1) board, moving to the lowest available unvisited square at each step.

n	a(n)
1	1
2	1
3	14
4	30
5	69
6	108
7	150
8	205
9	264
10	333
11	408
12	475
13	553
14	659
15	763
16	881
17	1004
18	1134
19	1274
20	1418
21	1641
22	1811
23	1986
24	2167
25	2358
26	2557
27	2633
28	2978
29	2084
30	2084
31	2084
32	2084
33	2084
34	2084
35	2084
36	2084
37	2084
38	2084
39	2084
40	2084
41	2084
42	2084
43	2084
44	2084
45	2084
46	2084
47	2084

[1, 1, 14, 30, 69, 108, 150, 205, 264, 333, 408, 475, 553, 659, 763, 881, 1004, 1134, 1274, 1418, 1641, 1811, 1986, 2167, 2358, 2557, 2633, 2978, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084, 2084]

cp's OEIS Frontend

A308312 a(n) is the last square visited by knight moves on a spirally numbered (2n-1) X (2n-1) board, moving to the lowest available unvisited square at each step.

Table of values

List of values