32280

Appears in sequences

• Numbers k such that k*Sum_{d|k} 1/sigma(d) is an integer.at n=22A069166
• Numbers k such that d(phi(k)) = phi(d(k)), where d=A000005 and phi=A000010.at n=40A078148
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 0, -1), (0, 0, 1), (0, 1, 1), (1, 1, -1)}.at n=8A150674
• Number of 5 X 5 X 5 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.at n=22A166213
• Number of 4 X n 0..2 arrays with no element equal to the sum of elements to its left or one plus the sum of the elements above it, modulo 3.at n=24A239031
• Central terms of triangles A102472 and A102473.at n=5A247365
• a(n) = 36*n^2 - 4*n (n>=1).at n=29A304380
• First differences of A328078.at n=17A328079