54043

Appears in sequences

• Numbers k such that k | 12^k + 11^k + 10^k + 9^k + 8^k + 7^k + 6^k + 5^k.at n=21A057491
• Composite numbers whose exponents in their canonical factorization lie in the geometric progression 1, 3, 9, ...at n=26A102838
• Number of (w,x,y,z) with all terms in {1,...,n} and w>2x and y>3z.at n=35A212518
• Number of compositions of n having exactly two fixed points.at n=16A240737
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 545", based on the 5-celled von Neumann neighborhood.at n=37A272836