A096219 a(n) is the number of distinct prime-complete rules of minimal length for the first n primes.

1, 1, 1, 1, 3, 7, 41, 2, 18

Offset

0,5

Links

Table of n, a(n) for n=0..8.

Carlos Rivera, The Prime Puzzles & Problems Connection: Puzzle 172.

Example

a(7)=2: 1.1.1.1.11.1.1.2.13.7.17.1.3.5.1 and 1.1.1.1.11.2.1.1.13.7.17.1.5.3.1.

Crossrefs

Sequence in context: A018943 A019024 A135071 * A128647 A071730 A058815

Adjacent sequences: A096216 A096217 A096218 * A096220 A096221 A096222

Keyword

nonn

Author

Ray G. Opao, Jul 29 2004

Status

approved