1,2

The example demonstrates that the minimum order of the set of primes represented by all composites in the prime gap 2*n is not necessarily obtained by using the smallest prime(k) (that would be A038664).

Table of n, a(n) for n=1..8.

For n=8: p_283-p_282 = p_296-p_295 = 2*8=16; omega(A061214(282)) > omega(A061214(295)); omega(A061214(295)) = 21; so a(8) = 21.

Cf. A052297.

Sequence in context: A167791 A139099 A152259 * A003071 A178442 A319986

Adjacent sequences: A219608 A219609 A219610 * A219612 A219613 A219614

nonn,more

Naohiro Nomoto, Apr 12 2013

approved