188396

Appears in sequences

• Number of subsets of { 1, ..., n } containing an A.P. of length 10.at n=24A018795
• Triangle read by rows: number of set partitions of n elements with k connectors, 0<=k<n.at n=58A185982
• Number of set partitions of [n] having exactly three pairs (m,m+1) such that m is in some block b and m+1 is in block b+1.at n=8A271790