2014321

Appears in sequences

• Array read by upwards antidiagonals: T(m,n) = number of set partitions of the multiset consisting of one copy each of x_1, x_2, ..., x_m, and two copies each of y_1, y_2, ..., y_n, for m >= 0, n >= 0.at n=41A322765
• Number of partitions of the (n+5)-multiset {1,2,...,n,1,2,...,5}.at n=8A346882
• Number of partitions of the (n+8)-multiset {1,2,...,n,1,2,...,8}.at n=5A346885