Integers n > 1 such that A130280(4n^2) < n, i.e., there is an m < n, m > 1 such that 4n^2(m^2 - 1) + 1 is a square.

A130281

Integers n > 1 such that A130280(4n^2) < n, i.e., there is an m < n, m > 1 such that 4n^2(m^2 - 1) + 1 is a square.

Terms

    a(0) =28a(1) =102a(2) =248a(3) =390a(4) =490a(5) =852a(6) =1358a(7) =2032a(8) =2898a(9) =3465a(10) =3980a(11) =5302a(12) =5432a(13) =6888a(14) =8762a(15) =10948a(16) =13470a(17) =15372a(18) =16352a(19) =19618a(20) =23292a(21) =27398a(22) =31960a(23) =37002a(24) =42548a(25) =48015a(26) =48622a(27) =55248a(28) =62450a(29) =70252

External references