A090165 - cp's OEIS frontend

A090165 Number of configurations of Sam Loyd's sliding block 15-puzzle that require a minimum of n moves to be reached, starting with the empty square at one of the 8 non-corner boundary squares.

n	a(n)
0	1
1	3
2	6
3	14
4	32
5	66
6	134
7	280
8	585
9	1214
10	2462
11	4946
12	9861
13	19600
14	38688
15	76086
16	148435
17	288098
18	554970
19	1062628
20	2016814
21	3800682
22	7093209
23	13127364
24	24053454
25	43657576
26	78382622
27	139237375

[1, 3, 6, 14, 32, 66, 134, 280, 585, 1214, 2462, 4946, 9861, 19600, 38688, 76086, 148435, 288098, 554970, 1062628, 2016814, 3800682, 7093209, 13127364, 24053454, 43657576, 78382622, 139237375]

cp's OEIS Frontend

A090165 Number of configurations of Sam Loyd's sliding block 15-puzzle that require a minimum of n moves to be reached, starting with the empty square at one of the 8 non-corner boundary squares.

Table of values

List of values