codegen/omega/chosol-1.c

for (int c1 = 2; c1 <= n; c1 += 1)
  s0(c1);
for (int c1 = 1; c1 < n; c1 += 1) {
  for (int c3 = c1 + 1; c3 <= n; c3 += 1)
    s1(c3, c1);
  s2(c1 + 1);
}