Numbers k such that both k and k+1 are recursive abundant numbers (A333928).

Terms

a(0) =56924a(1) =82004a(2) =84524a(3) =109395a(4) =158235a(5) =241604a(6) =261260a(7) =266475a(8) =285075a(9) =361844a(10) =442035a(11) =445004a(12) =469755a(13) =611324a(14) =666315a(15) =694484a(16) =712844a(17) =922635a(18) =968715a(19) =971684a(20) =1102724a(21) =1172115a(22) =1190475a(23) =1199835a(24) =1239524a(25) =1304324a(26) =1338435a(27) =1430715a(28) =1442924a(29) =1486275