51625

Appears in sequences

• Indices of hexagonal numbers which are also 9-gonal.at n=2A048917
• Numbers which when multiplied by any repunit prime Rp give a Smith number.at n=33A104167
• Start with 1 and repeatedly reverse the digits and add 36 to get the next term.at n=41A118536
• a(n) = n*(6*n^2 + 15*n + 5)/2.at n=25A163833