Odd composite numbers such that the sum of any two terms, plus 1, is a prime.
A133762
Odd composite numbers such that the sum of any two terms, plus 1, is a prime.
Terms
- a(0) =9a(1) =21a(2) =49a(3) =51a(4) =57a(5) =141a(6) =1011a(7) =2661a(8) =21471a(9) =64869a(10) =357561a(11) =1750989a(12) =5409570201a(13) =107563623099a(14) =657637783581
External references
- oeis: A133762