A119485 Number of children for which any subset can be generated by a counting-out game.

1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 16, 17, 19, 22, 23, 26, 29, 31, 32

Offset

1,2

Comments

The numbers were generated by an exhaustive search via a C-program.

Links

Table of n, a(n) for n=1..21.

Formula

Conjecture (by J. Fricke and G. Woeginger): The sequence contains exactly: powers of 2, primes and doubled primes.

Example

Having 6 children 1,2,3,4,5,6, then the children 2,4,6 can be counted-out by counting to 42: first selected child is 6, then 2 and finally 4.

Crossrefs

Complement of A119486.

Sequence in context: A365406 A342081 A033106 * A058363 A049810 A132018

Adjacent sequences: A119482 A119483 A119484 * A119486 A119487 A119488

Keyword

nonn,more

Author

Jan Fricke, May 23 2006

Status

approved