79682

Appears in sequences

• a(n) = 625*n^2 - 886*n + 314.at n=11A157618
• Number of connected labeled graded posets on n vertices.at n=6A228551
• Number T(n,k) of ordered set partitions of [n] where k is minimal such that for each block b the smallest integer interval containing b has at most k elements; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=40A276891
• Number of ordered 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=4A276892
• Number of ordered set partitions of [n] where k = four is minimal such that for each block b the smallest integer interval containing b has at most k elements.at n=4A320617
• Numbers k such that the equation x^2 - k*y^4 = -1 has a solution for which |y| > 2.at n=32A356488