A074288 n-th term of the Kolakoski sequence (A000002) multiplied by the n-th partial sum.

1, 6, 10, 6, 7, 18, 10, 24, 28, 15, 34, 38, 20, 21, 46, 24, 25, 54, 58, 30, 64, 33, 34, 72, 37, 78, 82, 42, 43, 90, 46, 47, 98, 50, 104, 108, 55, 114, 118, 60, 61, 126, 64, 132, 136, 69, 142, 72, 73, 150, 76, 77, 158, 162, 82, 168, 172, 87, 88, 180, 91, 186

Offset

1,2

Links

Nathaniel Johnston, Table of n, a(n) for n = 1..10000

Example

The Kolakoski sequence begins 1,2,2,1,1,2,...  and its sequence of partial sums (A054353) begins 1,3,5,6,7,9,... Therefore the opening terms are 1,6,10,6,7,18.

Crossrefs

Cf. A054353, A074289.

Sequence in context: A075368 A235117 A339590 * A156383 A247270 A010726

Adjacent sequences: A074285 A074286 A074287 * A074289 A074290 A074291

Keyword

nonn,easy

Author

Jon Perry, Sep 21 2002

Extensions

Edited and offset corrected by Nathaniel Johnston, May 02 2011

Status

approved