A187287 - cp's OEIS frontend

A187287 Number of 2-step one or two space at a time rook's tours on an n X n board summed over all starting positions.

n	a(n)
1	0
2	8
3	36
4	80
5	140
6	216
7	308
8	416
9	540
10	680
11	836
12	1008
13	1196
14	1400
15	1620
16	1856
17	2108
18	2376
19	2660
20	2960
21	3276
22	3608
23	3956
24	4320
25	4700
26	5096
27	5508
28	5936
29	6380
30	6840
31	7316
32	7808
33	8316
34	8840
35	9380
36	9936
37	10508
38	11096
39	11700
40	12320
41	12956
42	13608
43	14276
44	14960
45	15660

[0, 8, 36, 80, 140, 216, 308, 416, 540, 680, 836, 1008, 1196, 1400, 1620, 1856, 2108, 2376, 2660, 2960, 3276, 3608, 3956, 4320, 4700, 5096, 5508, 5936, 6380, 6840, 7316, 7808, 8316, 8840, 9380, 9936, 10508, 11096, 11700, 12320, 12956, 13608, 14276, 14960, 15660]

cp's OEIS Frontend

A187287 Number of 2-step one or two space at a time rook's tours on an n X n board summed over all starting positions.

Table of values

List of values