A130805 a(1)=1. The n-th run (after the initial 1) consists of (a(n)+n) repeated a(n) times.

1, 2, 4, 4, 7, 7, 7, 7, 8, 8, 8, 8, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20

Offset

1,2

Links

Table of n, a(n) for n=1..72.

Example

The third run (after the initial 1) consists of (3+a(3)) = 7 repeated a(3)=4 times.

Crossrefs

Cf. A001462.

Sequence in context: A103622 A328853 A105774 * A023831 A233272 A023844

Adjacent sequences: A130802 A130803 A130804 * A130806 A130807 A130808

Keyword

easy,nonn

Author

Leroy Quet, Jul 16 2007

Status

approved