Arc-cotangent reducible numbers or non-Størmer numbers: largest prime factor of k^2 + 1 is less than 2*k.

A002312

Arc-cotangent reducible numbers or non-Størmer numbers: largest prime factor of k^2 + 1 is less than 2*k.

Terms

    a(0) =3a(1) =7a(2) =8a(3) =13a(4) =17a(5) =18a(6) =21a(7) =30a(8) =31a(9) =32a(10) =38a(11) =41a(12) =43a(13) =46a(14) =47a(15) =50a(16) =55a(17) =57a(18) =68a(19) =70a(20) =72a(21) =73a(22) =75a(23) =76a(24) =83a(25) =91a(26) =93a(27) =98a(28) =99a(29) =100

External references