133951675

Appears in sequences

• "BHK" (reversible, identity, unlabeled) transform of 1,0,1,0...(odds).at n=41A032089
• a(n)=Sum{T(2i,n-2i): i=0,1,...,[ n/2 ]}, array T as in A049600.at n=21A049601
• Number of (s(0), s(1), ..., s(n)) such that 0 < s(i) < 5 and |s(i) - s(i-1)| <= 1 for i = 1,2,...,n, s(0) = 2, s(n) = 4.at n=21A094292