3732588

Appears in sequences

• a(n) = floor(Fibonacci(n)/4).at n=36A004697
• Denominators of continued fraction convergents to sqrt(20).at n=11A041031
• Denominators of continued fraction convergents to sqrt(500).at n=15A041955
• Number of permutations satisfying -k <= p(i) - i <= r and p(i) - i not in I, i=1..n, with k=1, r=5, I={1,3}.at n=33A079962
• a(n) = a(n-1) + a(n-2) + 1 if n is a multiple of 6, otherwise a(n) = a(n-1) + a(n-2).at n=32A131132
• Number of (1,0)-steps of weight 1 at level 0 in all weighted lattice paths in L_n.at n=17A182890
• Numbers x such that 20*x^2 + 1 is a perfect square.at n=6A207832
• a(n) is the least integer k such that k/Fibonacci(n) > 1/4.at n=36A293552
• a(n) is the integer k that minimizes |k/Fibonacci(n) - 1/4|.at n=36A293553