46949

Appears in sequences

• 3-almost primes with semiprime digits (digits 4, 6, 9 only).at n=40A111494
• Partial sum of (Catalan numbers A000108 multiplied by powers of 4).at n=5A112698
• Triangle built from partial sums of Catalan numbers A000108 multiplied by powers.at n=49A112705
• Irregular triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k symmetric valleys, with k >= 0.at n=39A372875