45196

Appears in sequences

• Numbers n such that the last 9 decimal digits of the n-th Fibonacci number is pandigital 1-9.at n=13A112371
• G.f.: Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} ((1 + x^j)/(1 - x^j))^2.at n=23A376853