29438

Appears in sequences

• Number of Dyck n-paths all of whose ascents and descents have lengths equal to 1 (mod 9).at n=37A212368
• Number of n X 4 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero.at n=13A304006
• The hafnian of a symmetric Toeplitz matrix of order 2*n, n>=2 with the first row (0,2,1,...,1,2); a(0)=1, a(1)=2.at n=6A336400