447405

Appears in sequences

• Total number of occurrences of the pattern 1<2 in all preferential arrangements (or ordered partitions) of n elements.at n=6A240796
• Triangle read by rows. Row k are the coefficients of the polynomials (sorted by ascending powers) which interpolate the points (n, A355257(n, k+1)) for n = 0..k.at n=40A355259