A230559 Pseudoprimes n to base 2 such that n-2, n+2 and n+4 are primes.

634038307449, 4846359321105, 11927878640385, 20835183400305, 34166605315305, 54096163177785, 63154533545265, 88365393281985, 189080281720065, 850943773070385, 917252751841665, 1278728202166185, 1602254869802049, 3742704749436465, 6082185264252945

Offset: 1

Author

Shyam Sunder Gupta, Oct 27 2013

Keywords

• nonn

Comments

All numbers in this sequence end in either 5 or 9.

Examples

			634038307449 is a pseudoprime (base 2) and 634038307447, 634038307451 and 634038307453 are primes.
		

Links

• Shyam Sunder Gupta, Table of n, a(n) for n = 1..82

Crossrefs

Cf. A001567, A057942, A230488, A230489, A228575.