Numbers k such that A025487(k) and A025487(k+1) have an equal number of divisors.

Terms

a(0) =4a(1) =8a(2) =15a(3) =22a(4) =69a(5) =116a(6) =122a(7) =134a(8) =135a(9) =168a(10) =208a(11) =278a(12) =400a(13) =453a(14) =538a(15) =584a(16) =718a(17) =1019a(18) =1409a(19) =1671a(20) =1799a(21) =2035a(22) =2417a(23) =2541a(24) =2595a(25) =2783a(26) =3424a(27) =3809a(28) =3860a(29) =4415