a(n) is the smallest number k such that tau(k + n) = tau(k) + n where tau(n) is the number of divisors of n (A000005).

A305196

a(n) is the smallest number k such that tau(k + n) = tau(k) + n where tau(n) is the number of divisors of n (A000005).

Terms

    a(0) =1a(1) =1a(2) =10a(3) =9a(4) =26a(5) =25a(6) =74a(7) =29a(8) =82a(9) =441a(10) =170a(11) =133a(12) =348a(13) =131a(14) =166a(15) =3025a(16) =344a(17) =559a(18) =1602a(19) =557a(20) =820a(21) =9979a(22) =986a(23) =4333a(24) =1236a(25) =9191a(26) =694a(27) =3249a(28) =1652a(29) =3481

External references