44706

Appears in sequences

• Number of Carmichael numbers (A002997) less than 10^n.at n=13A055553
• a(n) = floor(log_10(1/error(n))), where error(n) is the error in the n-th iteration of the Salamin-Brent algorithm for computing Pi.at n=14A276778
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) is Sum_{i=0..n} (-2)^(n-i)*binomial(n,i)*Sum_{j=0..i} binomial(i,j)^k.at n=59A328748