34785

Appears in sequences

• Positive integers n that are palindromic in base 2 and whose binary representation has the same number of 0's as 1's.at n=14A143905
• G.f. A(x) satisfies: A(x) = 1 + x*[d/dx 1/(1 - x*A(x)^3)].at n=5A305603
• Sum of the second largest parts in the partitions of n into 6 parts.at n=45A308872
• Numbers with binary expansion Sum_{k = 0..w} b_k * 2^k such that the polynomial Sum_{k = 0..w} (X+k)^2 * (-1)^b_k is constant.at n=39A337672
• For any number n with runs in binary expansion (r_w, ..., r_0), let p(n) be the polynomial of a single indeterminate x where the coefficient of x^e is r_e for e = 0..w and otherwise 0, and let q be the inverse of p; a(n) = q(p(n)^2).at n=9A355654
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A384984.at n=49A384987