50837

Appears in sequences

• a(n) = n*(4*n^2+5*n-3)/2.at n=28A126335
• Diagonal sums of triangle A096815.at n=31A212264
• a(2)=7; thereafter a(n) = smallest number m such that a(n-1)+m = (a(n-1) followed by the leading digit of m).at n=4A224758