A130865 a(1)=1. The n-th run (after the initial 1) consists of (a(n)*n) repeated a(n) times.

1, 1, 2, 6, 6, 24, 24, 24, 24, 24, 24, 30, 30, 30, 30, 30, 30, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168

Offset

1,3

Links

Table of n, a(n) for n=1..57.

Example

The fifth run (after the initial 1) consists of (5*a(5)) = 30 repeated a(5)=6 times. (The first run after the initial 1 consists of one 1. So (a(1),a(2)) = (1,1) actually consists of 2 different runs.)

Crossrefs

Cf. A130805, A001462.

Sequence in context: A304680 A367765 A325803 * A327630 A282170 A105725

Adjacent sequences: A130862 A130863 A130864 * A130866 A130867 A130868

Keyword

easy,nonn

Author

Leroy Quet, Jul 23 2007

Status

approved