255360

Appears in sequences

• Theta series of 14-dimensional lattice C2 X S8 with minimal norm 4.at n=5A047634
• A triangle of numbers related to triangle A030527.at n=32A049374
• Sum of divisors of n-th cyclic number.at n=0A087025
• Triangle T(n,k) of number of labeled directed multigraphs (with loops), without isolated vertices, with n arrows and k vertices (n = 1,2,.., k = 1..2*n).at n=27A120945
• Number of permutations of floor(i*5/4), i=0..n-1, with all sums of 5 adjacent terms unique.at n=8A152355
• Numbers other than prime powers divisible by the sum of the squares of their prime divisors.at n=25A190882
• Number of (n+2) X 7 0..2 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..2 introduced in row major order.at n=11A204281
• Integer areas A of integer-sided cyclic quadrilaterals such that the circumradius is of prime length.at n=41A230136
• Numbers k such that k+1 is a prime, k+2 is twice a prime, k+3 is three times a prime, and k+4 is four times a prime.at n=8A278585
• Numbers whose infinitary divisors have a mean infinitary abundancy index that is larger than 2.at n=30A374788