44705

Appears in sequences

• Number of 5-tuples of different integers from [ 1,n ] with no common factors among quadruples.at n=24A015644
• Numbers k such that 2*5^k - 3 is prime.at n=23A057915
• a(n) = 2^n for n = 0..4; for n > 4, a(n) = 2*a(n-1) + a(n-5).at n=15A098588
• Number of refactorable numbers (A033950) <= 10^n.at n=6A111291
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 121", based on the 5-celled von Neumann neighborhood.at n=39A270208