Least multiple k of prime(n) such that (k-1,k+1) forms a twin prime pair, or 0 if no such number exists.
A090530
Least multiple k of prime(n) such that (k-1,k+1) forms a twin prime pair, or 0 if no such number exists.
Terms
- a(0) =4a(1) =6a(2) =30a(3) =42a(4) =198a(5) =312a(6) =102a(7) =228a(8) =138a(9) =348a(10) =1302a(11) =1998a(12) =1230a(13) =1032a(14) =282a(15) =6360a(16) =1062a(17) =15738a(18) =1608a(19) =1278a(20) =6132a(21) =10428a(22) =4482a(23) =4272a(24) =11058a(25) =4242a(26) =618a(27) =642a(28) =5232a(29) =2712
External references
- oeis: A090530