The greater of the lexicographically least pair (x, y) such that 0 < x < y and sigma(x) = sigma(y) = x + y - n.
A285892
The greater of the lexicographically least pair (x, y) such that 0 < x < y and sigma(x) = sigma(y) = x + y - n.
Terms
- a(0) =284a(1) =11697a(2) =38a(3) =369a(4) =26a(5) =11a(6) =286a(7) =3135a(8) =58a(9) =17a(10) =25a(11) =39a(12) =428a(13) =23a(14) =23a(15) =69a(16) =94a(17) =8225a(18) =244a(19) =41a(20) =31a(21) =87a(22) =478a(23) =59a(24) =82a(25) =41a(26) =118a(27) =267a(28) =142a(29) =71
External references
- oeis: A285892