40265319

Appears in sequences

• a(n) = a(n-1) + 2^(k(n)), where k(n) is the n-th term of the sequence formed by k(1)=0 together with the numbers A042963.at n=13A113870
• Binary XOR of 2^k - (-1)^k as k varies from 1 to n.at n=24A199402
• Evaluation of the polynomials given by the Riordan square of the Fibonacci sequence with a(0) = 1 (A193737) at 1/2 and normalized with 2^n.at n=13A330795
• a(n) is the least number k such that A066323(k) = n.at n=39A342728