4358970

Appears in sequences

• Partition of positive integers into shortest possible groups, starting with (1), (2,3), (4,5,6), (7,8,9,10,11), such that a(n) = the sum of the terms of the n-th group is a multiple of a(n-1) and a(n) > a(n-1).at n=6A079798
• a(n) = 10*binomial(n+4, 5).at n=33A266732
• Triangular array read by rows: A063007 * A007318.at n=40A376467