A035326 Beginning of last prime pattern of length n to appear among positive integers.

4, 8, 9, 24, 25, 90, 91, 114, 143, 143, 205, 205, 1601, 1601, 2327, 2327, 5467, 5467, 18043, 18043, 29381, 29381, 90001, 90001, 3153569, 3153569, 3153569, 3153569, 4647259, 4647259, 74266243, 74266243

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Examples

			a(7) = 91 since 91 starts the length-7 prime pattern "ccccccp" (six composites followed by one prime) and all other possible length-7 prime patterns start with a number smaller than 91.
		

Crossrefs

Cf. A023192.