544971

Appears in sequences

• Triangle read by rows: counts series-parallel networks by the number of series connections.at n=31A140945
• Triangle read by rows: counts series-parallel networks by the number of series connections.at n=32A140945
• Number of 0..5 arrays x(0..n-1) of n elements with each no smaller than the sum of its previous elements modulo 6.at n=9A200249