A226768 Least prime in a string of exactly n consecutive primes all differing by 3-almost primes (A014612).

2, 89, 199, 4679, 1499, 24593, 118801, 318569, 1055741, 2253311, 3695513, 4559983, 22790969, 29625383, 85780433, 108547289, 1092631789, 520956851, 23522240041, 11229387053, 50466176303, 325923513479, 57958489439, 537724352057, 932937059897, 1970378236613, 12522644028841

Offset: 1

Author

Giovanni Resta, Jun 17 2013

Keywords

• nonn

Comments

a(28) > 4*10^13.

Examples

			a(3) = 199 since (199, 211, 223) is the first triple (which cannot be extended to a quadruplet) of consecutive primes whose first differences are 3-almost primes, 211-199 = 223-211 = 2^2*3.
		

Crossrefs

Cf. A220697, A226769, A226840.