1526520

Appears in sequences

• Number of arrangements of n+1 nonzero numbers x(i) in -4..4 with the sum of trunc(x(i)/x(i+1)) equal to zero.at n=6A189540
• Number of arrangements of 8 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero.at n=3A189551
• Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n-1)/2) * A(x)^n.at n=12A369086