29226

Appears in sequences

• Generalized Catalan numbers C(-7; n).at n=5A064329
• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,0,0,1,2,1,1 for x=0,1,2,3,4,5,6.at n=5A197938
• Number of days after Jan 01 1000 such that the date written in the format DDMMYYYY is palindromic.at n=25A210885
• Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^2<=x^2+y^2.at n=34A211634
• Number of (n+3)X(n+3) 0..1 matrices with each 4X4 subblock idempotent.at n=12A224560
• Number T(n,k) of compositions of n such that k is the minimal distance between two identical parts; triangle T(n,k), n>=2, 1<=k<=floor((sqrt(8*n-7)-1)/2), read by rows.at n=40A261981
• Number of compositions of n such that at least two adjacent parts are equal.at n=16A261983
• a(n) = 2*a(n-1) + a(n-3) with a(0) = 3, a(1) = 2, a(2) = 4.at n=13A332647