44027

Properties

Appears in sequences

• Numbers whose base-4 representation contains exactly four 2's and four 3's.at n=3A045157
• Lesser of twin balanced primes (A090403).at n=20A096694
• Prime numbers whose hexadecimal representation uses only the digits A,B,C,D,E,F (and not the decimal digits).at n=38A140969
• Lesser twin prime p such that p^2-p-2 is the average of a larger twin prime pair.at n=38A231652
• Number of partitions of n with difference -8 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=46A242684
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 563", based on the 5-celled von Neumann neighborhood.at n=34A272941
• Denominator of best rational approximation x/y of log(k), y<=k, with k>1 given by A306975. The corresponding numerators are given in A306976.at n=24A306977
• Array T(n, m) read by ascending antidiagonals: numerators of shifted Fubini numbers F(n, m) where m >= 0.at n=40A338875
• Primes p such that p, x+y, x-y, p-x*y and p+x*y are prime, where y = p mod 5 and x = (p-y)/5.at n=34A342771
• Number of fixed triangular n-ominoes of the regular tiling with Schläfli symbol {3,6} that have a common axis of symmetry coincident with cell altitudes and the point of the polyomino farthest along that axis in a specified direction is a cell edge center.at n=24A364487
• Prime numbersat n=4582