33396
domain: N
Appears in sequences
- Numbers k such that cototient(k) is a square and sets a new record for squares.at n=38A063753
- a(n) = (n+1)^2 * (n+2)^2 * (2*n+3) / 12.at n=10A108674
- Triangle read by rows: T(n,k) = the number of Dyck paths of semilength n with k UUUU's.at n=50A135305
- Number of (n+2) X 3 binary arrays avoiding patterns 001 and 101 in rows and columns.at n=19A202195
- Number of (w,x,y,z) with all terms in {1,...,n} and w^3>x^3+y^3+z^3.at n=21A212099
- Number of (w,x,y,z) with all terms in {0,...,n}, w and x odd, y even.at n=22A212762
- Numbers of espalier polycubes of a given volume in dimension 5.at n=25A229925
- Number of 2 X 2 planar subsets in an n X n X n cube.at n=23A270205
- a(n) = 4*p(n), where p(n) is the number of partitions of n.at n=32A299474
- a(n) = n*(1 - (-1)^n - 2*(3 + (-1)^n)*n^2 + 2*n^4)/384.at n=23A350689
- Numbers k such that 8191 * 2^k + 1 is prime.at n=7A377248