2845864

Appears in sequences

• Number of set partitions of [2n] where k=n is minimal such that for each block b the smallest integer interval containing b has at most k elements.at n=7A276728
• Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most seven elements and for at least one block c the smallest integer interval containing c has exactly seven elements.at n=7A320557