Numbers n such that the sum of the prime factors (including repeats) of prime(n)-1 and prime(n+1)-1 are the same.
A259564
Numbers n such that the sum of the prime factors (including repeats) of prime(n)-1 and prime(n+1)-1 are the same.
Terms
- a(0) =5a(1) =7a(2) =11a(3) =30a(4) =133a(5) =160a(6) =415a(7) =527a(8) =883a(9) =1257a(10) =2025a(11) =2771a(12) =2775a(13) =6650a(14) =6932a(15) =13793a(16) =19091a(17) =30695a(18) =32341a(19) =33722a(20) =36372a(21) =37944a(22) =40532a(23) =42141a(24) =47230a(25) =60986a(26) =77956a(27) =82165a(28) =90564a(29) =111414
External references
- oeis: A259564