45472

Appears in sequences

• Apply partial sum operator 4 times to primes.at n=16A178138
• Molecular topological indices of the complete graph K_n.at n=28A181617
• Number of hopping sequences in four-colored rooted trees with n nodes, starting and ending with the same "initial state" from all of the (two-colored) rooted trees in A198760. See comments.at n=3A198761
• Number of length n 1..(7+2) arrays with no leading partial sum equal to a prime.at n=5A254538
• Number of length 6 1..(n+2) arrays with no leading partial sum equal to a prime.at n=6A254544
• a(n) is the product of the numbers k such that a(n-2*k) = a(n-k) and 0 < n-2*k < n-k < n.at n=58A329311
• Irregular triangle read by rows: T(n,k) = total number of graceful labelings of connected graphs with n edges (n>=1) and k vertices (k>=1).at n=60A329790
• a(n) is the index of the first occurrence of n in A331284.at n=29A331285