1,2

Table of n, a(n) for n=1..83.

Eric Weisstein's World of Mathematics, Solvable groups

The symmetric and alternating groups on 5 elements are not solvable and have orders 60 and 120 respectively.

See A056866, the complementary set of numbers, which is the main entry for this question.

Sequence in context: A166719 A272159 A227981 * A265711 A262065 A296765

Adjacent sequences: A085733 A085734 A085735 * A085737 A085738 A085739

nonn

Andrew Niedermaier, Jul 20 2003

approved