156646

Appears in sequences

• Expansion of 1/(1-x^2-x^3-x^4-x^5-x^6-x^7-x^8).at n=28A013985
• Total number of 0's in all (binary) max-heaps on n elements from the set {0,1}.at n=23A309051
• a(n) = (-1)^n + Sum_{k=0..floor((n-1)/2)} a(k) * a(n-2*k-1).at n=39A351973