Numbers k such that k and k+1 have the same average of unitary divisors.

Terms

a(0) =5a(1) =14a(2) =44a(3) =55a(4) =152a(5) =1334a(6) =1634a(7) =1652a(8) =2204a(9) =2232a(10) =2295a(11) =2685a(12) =3195a(13) =4256a(14) =7191a(15) =8216a(16) =9144a(17) =9503a(18) =9844a(19) =10152a(20) =18423a(21) =19491a(22) =20118a(23) =27404a(24) =30247a(25) =33998a(26) =38180a(27) =42818a(28) =45716a(29) =48364