a(n) is the least positive integer that can be expressed as the sum of a prime number and a square of a nonnegative integer in exactly n ways.
A365288
a(n) is the least positive integer that can be expressed as the sum of a prime number and a square of a nonnegative integer in exactly n ways.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =11a(4) =38a(5) =107a(6) =83a(7) =167a(8) =293a(9) =227a(10) =398a(11) =677a(12) =668a(13) =902a(14) =908a(15) =1238a(16) =1487a(17) =1448a(18) =1748a(19) =1592a(20) =2273a(21) =2672a(22) =3167a(23) =3947a(24) =4457a(25) =3632a(26) =3713a(27) =6047a(28) =5843a(29) =7052
External references
- oeis: A365288