The smaller of the lexicographically least pair (x, y) such that 0 < x < y and sigma(x) = sigma(y) = n + x + y.

A285889

The smaller of the lexicographically least pair (x, y) such that 0 < x < y and sigma(x) = sigma(y) = n + x + y.

Terms

    a(0) =220a(1) =48a(2) =174a(3) =390a(4) =102a(5) =280a(6) =160a(7) =500a(8) =66a(9) =132a(10) =54a(11) =24280a(12) =992a(13) =560a(14) =140a(15) =168a(16) =60a(17) =10360a(18) =1120a(19) =1232a(20) =198a(21) =210a(22) =132a(23) =2170a(24) =520a(25) =1520a(26) =96a(27) =168a(28) =330a(29) =732

External references