Least even k such that sfdf(k-1) > sfdf(k-3) >= A050376(n), where sfdf(n) is the smallest Fermi-Dirac factor of n (A223490), and k-3 is not the lesser of a pair of Fermi-Dirac twin primes (A229064).
A244412
Least even k such that sfdf(k-1) > sfdf(k-3) >= A050376(n), where sfdf(n) is the smallest Fermi-Dirac factor of n (A223490), and k-3 is not the lesser of a pair of Fermi-Dirac twin primes (A229064).
Terms
- a(0) =18a(1) =38a(2) =38a(3) =80a(4) =102a(5) =212a(6) =224a(7) =440a(8) =440a(9) =440a(10) =578a(11) =728a(12) =1250a(13) =1460a(14) =1742a(15) =2012a(16) =2282a(17) =3434a(18) =3482a(19) =4190a(20) =4664a(21) =4760a(22) =4760a(23) =6890a(24) =7212a(25) =7212a(26) =7212a(27) =8054a(28) =10772a(29) =12830
External references
- oeis: A244412