Least m >= 0 which when added to primorial(n) yields a square.
A145781
Least m >= 0 which when added to primorial(n) yields a square.
Terms
- a(0) =2a(1) =3a(2) =6a(3) =15a(4) =91a(5) =246a(6) =715a(7) =3535a(8) =21099a(9) =95995a(10) =175470a(11) =4468006a(12) =31516774a(13) =192339970a(14) =212951314a(15) =5138843466a(16) =76699112491a(17) =103728576730
External references
- oeis: A145781