43206

Appears in sequences

• Row sums of triangle A110141.at n=8A110143
• a(n) = prime(prime(prime(prime(prime(A028815(n) - 1) - 1) - 1) - 1) - 1) - 1.at n=5A141130
• a(n) = f(f(f(f(f(n))))), where f(n) is prime(n)-1.at n=10A141139
• a(n) = prime(prime(prime(prime(n) - 1) - 1) - 1) - 1, where prime(n) is the n-th prime.at n=29A141217
• Array read by antidiagonals: T(n,k) is the number of isomorphism classes of n-fold coverings of a connected graph with Betti number k (1 <= n, 0 <= k).at n=47A160449
• a(n) = Sum_{k=0..n} binomial(2*n+3*k,n-k).at n=7A360144