183915

Appears in sequences

• Pisot sequence T(3,5).at n=28A020745
• Pisot sequence T(5,8), a(n) = floor(a(n-1)^2/a(n-2)).at n=27A020749
• Expansion of 1/((1-x)*(1-x-x^3)).at n=30A077868
• a(n) = Sum_{k=0..floor(n/3)} C(n-2k,k-1).at n=35A099560
• Cardinalities of the sets of fusible numbers obtained at the consecutive steps of their construction as follows. We set S(0) = {0}. S(n+1) is obtained by adding to S(n) the sums (x+y+1)/2 for all x,y from S(n) with the property |x-y| < 1. Then, a(n) is the number of elements in S(n).at n=15A343264