Smallest odd n-almost prime m such that m-2 and m+2 are both prime (cousin primes).

A145031

Smallest odd n-almost prime m such that m-2 and m+2 are both prime (cousin primes).

Terms

    a(0) =5a(1) =9a(2) =45a(3) =81a(4) =675a(5) =1215a(6) =14175a(7) =28431a(8) =72171a(9) =597051a(10) =2679075a(11) =885735a(12) =10333575a(13) =89813529a(14) =286446699a(15) =390609135a(16) =789189885a(17) =7274895849a(18) =55142849601a(19) =204945438681a(20) =154580775111a(22) =596240132571

External references