Irregular table read by rows: T(n,k) is the smallest m that has 2*n divisors and is at the beginning of a run of exactly k consecutive integers whose number of divisors increases by 2, or -1 if no such m exists.

A363335

Irregular table read by rows: T(n,k) is the smallest m that has 2*n divisors and is at the beginning of a run of exactly k consecutive integers whose number of divisors increases by 2, or -1 if no such m exists.

Terms

    a(0) =2a(1) =5a(2) =61a(3) =421a(4) =1524085621a(5) =10a(6) =27a(7) =187a(8) =2545622a(9) =12a(10) =153a(11) =35557a(12) =363121a(13) =223577456873a(14) =44753756873

External references