106279

Properties

Appears in sequences

• Number of length n left factors of Dyck paths having no UDUD's; here U=(1,1) and D=(1,-1).at n=21A191792
• a(n) = ceiling((n+1/n)^4).at n=17A197903
• Number of (n+1) X (n+1) -9..9 symmetric matrices with every 2 X 2 subblock having sum zero and one or two distinct values.at n=18A211549
• Prime numbersat n=10129