19434

Appears in sequences

• Aliquot sequence starting at 138.at n=14A008888
• Aliquot sequence starting at 150.at n=13A008889
• Aliquot sequence starting at 168.at n=11A008890
• Aliquot sequence starting at 570.at n=9A074907
• Numbers k such that k, k+1, k+2 and k+3 are products of 4 primes.at n=6A124728
• The even composites c such that c=q*g*j*y and q+g=j*y where q,g,j,y are primes.at n=34A167690
• Number of strings of numbers x(i=1..7) in 0..n with sum i^2*x(i)^3 equal to 49*n^3.at n=32A184322
• Number of n X n 1..3 arrays with no element with value z exactly a city block distance of z from another element with value z.at n=4A209366
• Number of nX5 1..3 arrays with no element with value z exactly a city block distance of z from another element with value z.at n=4A209371
• T(n,k) = Number of n X k 1..3 arrays with no element with value z exactly a city block distance of z from another element with value z.at n=40A209374
• Number of (w,x,y) with all terms in {0,...,n} and w < range{w,x,y}.at n=35A212967
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 622", based on the 5-celled von Neumann neighborhood.at n=37A269567
• Maximum second Zagreb index of maximal 3-degenerate graphs with n vertices.at n=39A372025