344865

Appears in sequences

• a(1)=1, a(n) = n*16^(n-1) + a(n-1).at n=4A014931
• 1+2n+3n^2+4n^3+5n^4.at n=16A056579
• Numbers that start a run of four consecutive triangular numbers with four distinct prime factors.at n=32A349773