56619

Appears in sequences

• Group successively larger prime numbers so that the sum of the n-th group is a multiple of n. Sequence gives the sum for each group.at n=26A074128
• Triangle read by rows: number of hex trees with n edges and k branches of length 1 (0<=k<=n).at n=45A126321
• Number of hex trees with n edges and no branches of length 1.at n=9A126322