Sum of divisors of those numbers n such that n and n+1 have the same sum of divisors.

Terms

a(0) =24a(1) =312a(2) =1440a(3) =2160a(4) =2688a(5) =2640a(6) =4320a(7) =4464a(8) =7644a(9) =22932a(10) =28314a(11) =29040a(12) =34560a(13) =37440a(14) =51840a(15) =56160a(16) =65280a(17) =100800a(18) =115200a(19) =114912a(20) =120960a(21) =120960a(22) =138240a(23) =153216a(24) =194400a(25) =168960a(26) =178560a(27) =186048a(28) =207360a(29) =221184