If the least prime factor of ((prime(k)*prime(k+1))^2 + 1)/2 for k >= 2 is not yet in the sequence, then add it to the sequence.
A077287
If the least prime factor of ((prime(k)*prime(k+1))^2 + 1)/2 for k >= 2 is not yet in the sequence, then add it to the sequence.
Terms
- a(0) =113a(1) =613a(2) =5a(3) =24421a(4) =101a(5) =2042221a(6) =13a(7) =41a(8) =60731221a(9) =102975601a(10) =6653a(11) =253102501a(12) =327449641a(13) =17a(14) =14957a(15) =722798221a(16) =37a(17) =35597a(18) =797a(19) =233a(20) =2284271641a(21) =7937a(22) =337a(23) =73a(24) =29a(25) =53a(26) =46414646521a(27) =57358506301a(28) =2521a(29) =89
External references
- oeis: A077287