A055872 - cp's OEIS frontend

A055872 a(n) and floor(a(n)/8) are both squares; i.e., squares that remain squares when written in base 8 and last digit is removed.

n	a(n)
1	0
2	1
3	4
4	9
5	36
6	289
7	1156
8	9801
9	39204
10	332929
11	1331716
12	11309769
13	45239076
14	384199201
15	1536796804
16	13051463049
17	52205852196
18	443365544449
19	1773462177796
20	15061377048201
21	60245508192804

[0, 1, 4, 9, 36, 289, 1156, 9801, 39204, 332929, 1331716, 11309769, 45239076, 384199201, 1536796804, 13051463049, 52205852196, 443365544449, 1773462177796, 15061377048201, 60245508192804]

cp's OEIS Frontend

A055872 a(n) and floor(a(n)/8) are both squares; i.e., squares that remain squares when written in base 8 and last digit is removed.

Table of values

List of values