19251

Appears in sequences

• a(n) = floor(tau*a(n-1)) + a(n-2) with a(0)=0 and a(1)=2.at n=14A005829
• "BHJ" (reversible, identity, labeled) transform of 1,1,1,1...at n=6A032073
• Convolution of L(n+1) := A000204(n+1) (Lucas), n>=0, with L(n+7), n>=0.at n=8A067985
• a(n) = Min{x : A073124(x) = 2n}.at n=42A096480
• Expansion of (1-x)^2/((1-x)^3-5x^3).at n=11A097124
• Number of degeneracies on the sets of n ordinary trees with n vertices. These are the values of the Schultz molecular topological index, MTI, in Table 15 of the paper by Elena V. Konstantinova and Maxim V. Vidyuk.at n=8A125069
• Number of lines through at least 2 points of a 10 X n grid of points.at n=29A160850
• Number of n X 2 nonnegative integer arrays with upper left 0 and lower right n+2-4 and value increasing by 0 or 1 with every step right or down.at n=23A252870
• Constant term in the expansion of (n/x + 1 + n*x)^n.at n=5A307844
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 - 2*x + (1-4*k^2)*x^2).at n=60A307847
• Number of set-systems covering n vertices whose dual is a weak antichain.at n=4A326970
• Numbers k such that A307437(k) is divisible by 3.at n=32A342037
• Numbers that are the sum of seven fourth powers in six or more ways.at n=16A345572
• Numbers that are the sum of seven fourth powers in exactly six ways.at n=13A345828
• a(n) = n * (n + 4) * (n + 8).at n=23A370914
• a(n) = (a(n-3)*a(n-9) + a(n-1)*a(n-11))/a(n-12) with a(0) = ... = a(11) = 1.at n=28A375922
• G.f. A(x) satisfies A(x) = ( 1 + x * A(x*A(x))^(1/3) )^3.at n=7A384577
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A143501.at n=62A384581