27102

Appears in sequences

• Number of 8's in all partitions of n.at n=44A024792
• Exponents in expansion of constant A065479 as a product zeta(n)^(-a(n)).at n=18A065491
• Barely abundant numbers: abundant n such that sigma(n)/n < sigma(m)/m for all abundant numbers m<n, sigma(n) being the sum of the divisors of n.at n=21A071927
• Number of (n+1) X 4 binary arrays with no 2 X 2 subblock determinant equal to any horizontal or vertical neighbor 2 X 2 subblock determinant.at n=5A185461
• Number of (n+1)X7 binary arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant.at n=2A185464
• T(n,k)=Number of (n+1)X(k+1) binary arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant.at n=30A185467
• T(n,k)=Number of (n+1)X(k+1) binary arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant.at n=33A185467
• Number of 0..n arrays of length 7 with each element differing from at least one neighbor by 1 or less, starting with 0.at n=13A221686
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 57", based on the 5-celled von Neumann neighborhood.at n=34A270077