Sequence with all (x, y) = (a(2m), a(2m+-1)) satisfying x|y^2+y+1 and y|x^2+1.
A242725
Sequence with all (x, y) = (a(2m), a(2m+-1)) satisfying x|y^2+y+1 and y|x^2+1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =37a(5) =137a(6) =511a(7) =1906a(8) =7113a(9) =26545a(10) =99067a(11) =369722a(12) =1379821a(13) =5149561a(14) =19218423a(15) =71724130a(16) =267678097a(17) =998988257a(18) =3728274931a(19) =13914111466a(20) =51928170933a(21) =193798572265a(22) =723266118127
External references
- oeis: A242725