143588

Appears in sequences

• Triangle T(n,k) = A176487(n,k)+A176488(n,k)-1 read by rows 0<=k<=n.at n=47A176489
• a(n) = number of pairs (p,q) of partitions of n such that d(p,q) < o(p,q), where d and o are distance functions; see Comments.at n=17A368565