Smallest integer m such that m^2 + 1 has exactly n prime factors, counted with multiplicity.
A257366
Smallest integer m such that m^2 + 1 has exactly n prime factors, counted with multiplicity.
Terms
- a(0) =1a(1) =3a(2) =7a(3) =43a(4) =57a(5) =307a(6) =1068a(7) =2943a(8) =12943a(9) =45807a(10) =110443a(11) =670807a(12) =2733307a(13) =25670807a(14) =113561432a(15) =123327057a(16) =657922943a(17) =17213170807a(18) =7200891693a(19) =148802454193
External references
- oeis: A257366