92681

Properties

Appears in sequences

• Number of 5-tuples of different integers from [ 2,n ] with no common factors among quadruples.at n=28A015645
• Powers of sqrt(2) rounded down.at n=33A017910
• Powers of sqrt(8) rounded down.at n=11A017928
• Powers of fourth root of 8 rounded down.at n=22A018066
• a(0)=1, a(n+1) = 2*a(n) + b(n+2), where b(n)=A004539(n) is the n-th bit in the binary expansion of sqrt(2).at n=16A084188
• Reduced numerators in Wolfram's iteration for sqrt(2).at n=17A095805
• a(0) = a(1) = 0; for n >= 2, a(n) = floor(sqrt(2^(n-2)-1)).at n=35A116601
• Least prime p of a quartet of 4 distinct primes {p, p+2, q, q+2} such that each digit of q is the same as the corresponding digit of p except that each 6 in p corresponds to a 9 in q and vice versa.at n=22A122712
• Largest prime <= 2^((n+1)/2).at n=31A133225
• Integers n such that n^2 + k is a Mersenne number 2^m - 1 for some k such that n < k < 2 * n and m odd.at n=6A144934
• Number of sets (in the Hausdorff metric geometry) at each location between two sets defining a polygonal configuration consisting of two 4-gonal polygonal components chained with string components of length l as l varies.at n=14A152929
• Integer part of square root of n^11 = A008455(n).at n=8A155015
• Primes that become squares when prefixed with a 2.at n=26A167735
• Values y for records of the minima of the positive distance d between the eleventh power of a positive integer x and the square of an integer y such that d = x^11 - y^2 (x <> k^2 and y <> k^11).at n=4A179795
• a(n) = 4*n^3 - 6*n^2 + 6*n - 2 + (-1)^n.at n=28A382973
• Prime numbersat n=8952