99722

Appears in sequences

• G.f. is the continued fraction: A(x) = 1/[1 - x/[1 - (x-x^2)/[1 - (x^2-x^4)/[1 - (x^3-x^6)/[1-... - (x^n-x^(2n))/[1 - ... ]]]]]]].at n=28A099823
• Numbers k such that k and k^2 use only the digits 2, 4, 7, 8 and 9.at n=33A137107
• G.f.: 1 / Product_{n>=0} (1 - x^(n+6))^((n+1)*(n+2)*(n+3)*(n+4)*(n+5)/5!).at n=21A264926