152917

Appears in sequences

• Related to graded partially ordered sets.at n=5A001830
• a(n) = 2*a(n-1) - (-1)^n for n > 0, a(0)=2.at n=16A062092
• Numbers k such that A081252(m)/m^2 has a local minimum for m = k.at n=16A081253
• Expansion of (1+x-x^2)/((1-x)*(1-4*x^2)).at n=17A097163
• A007318^(-1) * A133648.at n=16A133649
• a(n) = a(n-1) + 4a(n-2) - 4a(n-3).at n=17A136326
• a(n) = 5*a(n-1) - 9*a(n-2) + 8*a(n-3) - 4*a(n-4), with a(0)=0, a(1)=0, a(2)=0, a(3)=1.at n=16A137221
• Dispersion of A016813 (4k+1, k>1), by antidiagonals.at n=46A191667
• a(n) = (7*4^n - 1)/3.at n=8A206374
• Expansion of (1+2*x+3*x^2-x^3)/((1-x)*(1+x)*(1-2*x)*(1+2*x)).at n=17A221049
• Rectangular array with all start numbers Me(n, k), k >= 1, for the Collatz operation ud^(2*n), n >= 1, ending in an odd number, read by antidiagonals.at n=43A238475
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 557", based on the 5-celled von Neumann neighborhood.at n=17A282776
• a(0) = 2, a(1) = 2; for n > 1, a(n) = a(n-1) + 2*a(n-2) + 3.at n=16A290604