2815344

Appears in sequences

• Order of the group of invertible 3 X 3 symmetric matrices over Z(n).at n=13A115226
• Triangle by rows T(n,k), showing the number of meanders with length (n+1)*3 and containing (k+1)*3 L's and (n-k)*3 R's, where L's and R's denote arcs of equal length and a central angle of 120 degrees which are positively or negatively oriented.at n=48A194595
• Number of n-step paths from (0,0) to (1,0) where all diagonal, vertical and horizontal steps are allowed.at n=9A218274