A187297 - cp's OEIS frontend

A187297 Number of 2-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.

n	a(n)
1	0
2	4
3	18
4	40
5	70
6	108
7	154
8	208
9	270
10	340
11	418
12	504
13	598
14	700
15	810
16	928
17	1054
18	1188
19	1330
20	1480
21	1638
22	1804
23	1978
24	2160
25	2350
26	2548
27	2754
28	2968
29	3190
30	3420
31	3658
32	3904
33	4158
34	4420
35	4690
36	4968
37	5254
38	5548
39	5850
40	6160
41	6478
42	6804
43	7138
44	7480
45	7830
46	8188
47	8554

[0, 4, 18, 40, 70, 108, 154, 208, 270, 340, 418, 504, 598, 700, 810, 928, 1054, 1188, 1330, 1480, 1638, 1804, 1978, 2160, 2350, 2548, 2754, 2968, 3190, 3420, 3658, 3904, 4158, 4420, 4690, 4968, 5254, 5548, 5850, 6160, 6478, 6804, 7138, 7480, 7830, 8188, 8554]

cp's OEIS Frontend

A187297 Number of 2-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.

Table of values

List of values