Starts of a record number of consecutive integers n such that n^2 + 1 is composite.

A293564

Starts of a record number of consecutive integers n such that n^2 + 1 is composite.

Terms

    a(0) =3a(1) =7a(2) =27a(3) =41a(4) =95a(5) =185a(6) =351a(7) =497a(8) =3391a(9) =3537a(10) =45371a(11) =82735a(12) =99065a(13) =357165a(14) =840905a(15) =3880557a(16) =27914937a(17) =40517521a(18) =104715207a(19) =1126506905a(20) =2084910531a(21) =2442825347a(22) =4332318177a(23) =6716598047a(24) =17736392221a(25) =18205380337a(26) =30869303807a(27) =68506021365a(28) =78491213265a(29) =85620067845

External references