24348

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 26.at n=11A031704
• Triangle read by rows: T(n,k) is the number of peakless Motzkin paths of length n containing k subwords of the type U H^j U or D H^j D for some j>0, where U=(1,1), H=(1,0) and D=(1,-1) (can be easily expressed using RNA secondary structure terminology).at n=50A097100
• Number of isomorphism classes of toric log del Pezzo surfaces with index L = n.at n=29A145581
• a(n) = 676*n^2 + 2*n.at n=5A158385
• a(n) = 144*n^2 + 12.at n=13A158546
• a(n) = 169*n^2 + n.at n=11A173275
• Number of n X 3 nonnegative integer arrays with upper left 0 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.at n=10A252933
• Number of n-length words on {0,1,2,3,4} avoiding runs of zeros of length 1 (mod 3).at n=7A255632
• p-INVERT of the odd positive integers, where p(S) = 1 - S - 4 S^2.at n=6A292487
• Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes when each pair of points is connected by a circle and where the points lie at the ends of the circles' diameter.at n=35A362236