59630

Appears in sequences

• Number of binary rooted trees with n nodes and height exactly 9.at n=19A036598
• Numbers n such that A048767(n+1)=A048767(n).at n=37A048769
• Positions of 11's in A131744.at n=30A133152
• Number of n X 2 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4.at n=33A239844
• Triangle read by rows: T(n,k) is the coefficient A_k in the transformation Sum_{k=0..n} (k+1)*x^k = Sum_{k=0..n} A_k*(x-3)^k.at n=40A246799
• Starts of runs of 3 consecutive Niven numbers in base 2 (A049445).at n=28A330932
• G.f. A(x) satisfies: (1 - x*A(x))^3 = 1 - 3*x - x^3*A(x^3).at n=13A352702
• Irregular table read by rows: T(n,k) is the number of k-gons, k>=3, formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions equal the Farey series of order n.at n=41A359971