A230489 Pseudoprimes n to base 2 such that n+2 and n+4 are primes.

87249, 831405, 1489665, 2113665, 31880577, 81612105, 84028407, 86559045, 274014885, 1778357505, 1853263365, 2276082537, 9090685605, 12300409857, 43620860865, 69654751377, 248342283645, 634038307449, 848282877345, 1123296404385, 1344952805505, 3307428792777

Offset: 1

Author

Shyam Sunder Gupta, Oct 20 2013

Keywords

• nonn

Examples

			87249 is a pseudoprime (base 2) and 87251 and 87253 are primes.
		

Links

• Shyam Sunder Gupta, Table of n, a(n) for n = 1..1076

Crossrefs

Cf. A001567, A057942.