A096220 a(n) is the minimal length of prime-complete rules for the first n primes.

1, 3, 6, 12, 20, 33, 48, 66, 87

Offset

0,2

Links

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

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

Example

a(7)=66: 1+1+1+1+1+1+1+1+2+3+5+7+11+13+17=66

Crossrefs

Sequence in context: A061061 A361272 A001975 * A034333 A348464 A182978

Adjacent sequences: A096217 A096218 A096219 * A096221 A096222 A096223

Keyword

nonn

Author

Ray G. Opao, Jul 29 2004

Status

approved