321798

Appears in sequences

• Numbers of pairs (i, j), i, j > 1, such that i^j <= 10^n.at n=10A089363
• G.f.: exp( Sum_{n>=1} A051064(n)*3^A051064(n)*x^n/n ) where A051064(n) equals the 3-adic valuation of 3n.at n=31A183038