48557domain: NAppears in sequencesNumber of nondecreasing arrangements of 7 numbers x(i) in -(n+5)..(n+5) with the sum of sign(x(i))*2^|x(i)| zero.at n=28A187991a(n) is the greatest integer k such that k/Fibonacci(n) < 2/5.at n=26A293639a(n) is the integer k that minimizes |k/Fibonacci(n) - 2/5|.at n=26A293641