217336

Appears in sequences

• Number of prime powers (p^2, p^3, ...) <= 2^n.at n=42A036386
• Number of n X 5 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=12A207388
• Number of length n 0..7 arrays least squares fitting to a zero slope straight line, with a single point taken as having zero slope.at n=7A245133