A018930 - cp's OEIS frontend

A018930 a(1)=3; for n>1, a(n) is smallest positive integer such that a(1)^2+...+a(n)^2 = m^2 for some m.

n	a(n)
1	3
2	4
3	12
4	84
5	132
6	12324
7	1836
8	105552
9	255084
10	197580
11	10358340
12	13775220
13	1936434780
14	51299286012
15	123205977516
16	862441842612
17	1310543298204
18	667510076211780
19	207181940072172
20	110912831751840
21	1698410314006284

[3, 4, 12, 84, 132, 12324, 1836, 105552, 255084, 197580, 10358340, 13775220, 1936434780, 51299286012, 123205977516, 862441842612, 1310543298204, 667510076211780, 207181940072172, 110912831751840, 1698410314006284]

cp's OEIS Frontend

A018930 a(1)=3; for n>1, a(n) is smallest positive integer such that a(1)^2+...+a(n)^2 = m^2 for some m.

Table of values

List of values