33707

Appears in sequences

• Stern's sequence: a(1) = 1, a(n+1) is the sum of the m preceding terms, where m*(m-1)/2 < n <= m*(m+1)/2 or equivalently m = ceiling((sqrt(8*n+1)-1)/2) = A002024(n).at n=17A005230
• a(n) = floor(C(2n,n)/2^(n+1)).at n=19A024504
• Partial sums of economical numbers A046759.at n=26A172460
• Number of length 6+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=11A248543
• Expansion of Sum_{k>=1} x^k*(1 + x^k)/(1 - x^k)^4.at n=43A320941