a(n) is the index of the first occurrence of the Euclidean distance prime(n) from a point on a square spiral to its starting point at 1.

A336335

a(n) is the index of the first occurrence of the Euclidean distance prime(n) from a point on a square spiral to its starting point at 1.

Terms

    a(0) =11a(1) =28a(2) =50a(3) =176a(4) =452a(5) =536a(6) =848a(7) =1388a(8) =2048a(9) =1682a(10) =3752a(11) =4784a(12) =6272a(13) =7268a(14) =8696a(15) =7938a(16) =13748a(17) =14210a(18) =17756a(19) =19952a(20) =11888a(21) =24728a(22) =27308a(23) =25322a(24) =20456a(25) =38888a(26) =42128a(27) =45476a(28) =32792a(29) =49826

External references