Largest multiple of n which is a concatenation of the n numbers n(n-1)/2,...,n(n+1)/2-1, or 0 if no such number exists.

A193381

Largest multiple of n which is a concatenation of the n numbers n(n-1)/2,...,n(n+1)/2-1, or 0 if no such number exists.

Terms

    a(0) =0a(1) =12a(2) =543a(3) =9876a(4) =1413121110a(5) =201918171516

External references