The greater of the lexicographically least pair (x, y) such that 0 < x < y and sigma(x) = sigma(y) = n + x + y.
A285890
The greater of the lexicographically least pair (x, y) such that 0 < x < y and sigma(x) = sigma(y) = n + x + y.
Terms
- a(0) =284a(1) =75a(2) =184a(3) =615a(4) =110a(5) =435a(6) =212a(7) =585a(8) =70a(9) =195a(10) =56a(11) =30429a(12) =1012a(13) =915a(14) =182a(15) =297a(16) =92a(17) =16983a(18) =1886a(19) =1725a(20) =250a(21) =345a(22) =182a(23) =2415a(24) =716a(25) =2175a(26) =130a(27) =285a(28) =506a(29) =975
External references
- oeis: A285890