A384853 - cp's OEIS frontend

A384853 Squared length of interior diagonal of n-th (U, V)-crossbox, where U = (1, 0, 1) and V = (0, 1, 0), as in Comments.

n	a(n)
1	1
2	5
3	9
4	21
5	57
6	165
7	489
8	1461
9	4377
10	13125
11	39369
12	118101
13	354297
14	1062885
15	3188649
16	9565941
17	28697817
18	86093445
19	258280329
20	774840981
21	2324522937
22	6973568805
23	20920706409
24	62762119221
25	188286357657
26	564859072965
27	1694577218889
28	5083731656661

[1, 5, 9, 21, 57, 165, 489, 1461, 4377, 13125, 39369, 118101, 354297, 1062885, 3188649, 9565941, 28697817, 86093445, 258280329, 774840981, 2324522937, 6973568805, 20920706409, 62762119221, 188286357657, 564859072965, 1694577218889, 5083731656661]

cp's OEIS Frontend

A384853 Squared length of interior diagonal of n-th (U, V)-crossbox, where U = (1, 0, 1) and V = (0, 1, 0), as in Comments.

Table of values

List of values