43150

Appears in sequences

• Least k such that the first k terms of the Kolakoski sequence (A000002) contain n more 2's than 1's.at n=23A025503
• Position of first appearance of each integer in A088568 (number of 1's minus number of 2's in first n terms of A000002).at n=35A288605
• a(n) = index where A088568 (or equally A294448) first reaches or exceeds n in magnitude.at n=23A294449
• Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 3 + 2*x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 2*x - x^2.at n=37A367300