a(n) = smallest semiprime s such that s + n is the next semiprime and there is no prime between s and s + n.
A133478
a(n) = smallest semiprime s such that s + n is the next semiprime and there is no prime between s and s + n.
Terms
- a(0) =9a(1) =49a(2) =62a(3) =403a(4) =341a(5) =843a(6) =6722a(7) =3473a(8) =2869a(9) =14059a(10) =18467a(11) =26603a(12) =166126a(13) =41779a(14) =74491a(15) =192061a(16) =463161a(17) =226489a(18) =344119a(19) =517421a(20) =943606a(21) =2171131a(22) =4577519a(23) =584213a(24) =2560177a(25) =4356633a(26) =8367139a(27) =11174753a(28) =13191293a(29) =7319797
External references
- oeis: A133478