28387

Properties

Appears in sequences

• Powers of cube root of 3 rounded down.at n=28A017982
• Powers of cube root of 9 rounded down.at n=14A018000
• Primes with multiplicative persistence value 6.at n=3A046506
• Primes of the form k^2 - 7*k + 7.at n=35A089376
• Prime chain of 128 terms, including 104 distinct primes, consisting of the output of eight equations that alternate sequentially within a procedural expression of a single polynomial. The equations are either subsequences of x^2 - 79x + 1601 or transforms with one exception: 100x^2 - 2260x + 12959. The other four distinct equations are Euler-derived: 25x^2 - 1185x + 14083, 25x^2 - 775x + 6047, 100x^2 - 2280x + 13159, 100x^2 - 4160x + 43427.at n=37A140708
• Sequence of primes separated by [sequence of prime] elements. 2, [find 2nd prime after 2 = ] 5, [find 3rd prime after 5 =] 13, [find 5th prime after 13 =] 61, ..., etc.at n=40A180302
• Number of -1..1 arrays of n elements with first and second differences also in -1..1.at n=14A201081
• Irregular array T(n,k) of the numbers of non-extendable (complete) non-self-adjacent simple paths ending at each of a minimal subset of nodes within a square lattice bounded by rectangles with nodal dimensions n and 8, n >= 2.at n=41A214375
• Values k(i) such that k(i) + k(i+3) = k(i+1) + k(i+2), where k(i) is A022885(i).at n=13A235725
• Number of parts of even multiplicities in all the partitions of n.at n=37A264400
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 478", based on the 5-celled von Neumann neighborhood.at n=14A282485
• Lesser of sexy happy primes.at n=39A387258
• Prime numbersat n=3088