881145

Appears in sequences

• 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=30A079962
• Sequence a(n) = (1 + A007805(n))/2, appearing in a certain touching problem for three circles and a chord, together with A007805.at n=5A246641
• a(n) is the least integer k such that k/Fibonacci(n) > 1/4.at n=33A293552