58558

Appears in sequences

• Expansion of 1/(sqrt(1-2x-3x^2)-x).at n=10A111961
• Numbers k with digits 5 and 8 only.at n=39A284381
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) > d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=12A299639