3421440

Appears in sequences

• Denominators in Taylor series for x * cosec(x).at n=5A036281
• Values of phi in arithmetic progression of at least 6 terms having the same value of phi in A050518.at n=22A050520
• Number of permutations of floor(i*3/2), i=0..n-1, with all sums of 8 adjacent terms unique.at n=9A152694
• Number of permutations of floor(i*5/2), i=0..n-1, with all sums of 8 adjacent terms unique.at n=9A152696
• Number of permutations of floor(i*7/2), i=0..n-1, with all sums of 8 adjacent terms unique.at n=9A152700
• Number of permutations of floor(i*9/2), i=0..n-1, with all sums of 8 adjacent terms unique.at n=9A152708
• Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 8 adjacent terms unique.at n=9A152711
• a(n) = a(n-1) * (a(n-1) + a(n-2)) / a(n-4) with a(1) = a(2) = a(3) = a(4) = 1.at n=8A245283
• Number of 4-cycles in the n-halved cube graph.at n=10A290027