uint64_t b(uint64_t n){
uint64_t c = 1;
for(uint64_t i = 0; i <= n - 3; ++i){
c += reb(n - i)*(i + 1);
}
return c;
}
uint64_t reb(uint64_t n){
if(_reb[n]){
return _reb[n];
}
uint64_t c = 1;
for(uint64_t i = 3; i < n - 3; ++i){
c += reb(i)*(n - 3 - i);
}
return _reb[n] = c;
}
t_tet *ret(t_fill *res, t_tet *cpy, int k)
{
if (k == -1)
{
if (cpy->prev != NULL)
{
cpy = cpy->prev;
erasetet(cpy, res);
}
}
else
{
cpy = cpy->next;
reb(res);
}
return (cpy);
}