A pattern? Yes, of course!
Here what you can obtain if you paint a Pascal Triangle.
Update I think this link could be amusing:
Pascal's Triangle
#!/usr/bin/perl
use strict;
my $n = 10;
for my $i (0 .. $n) {
for my $j (0 .. $i) {
my $coefficient = nCr($i, $j);
if ($coefficient % 2) {
print '#';
} else {
print ' ';
}
}
print "\n";
}
# returns n!/r!(n-r)!
sub nCr
{
my $n=shift;
my $r=shift;
return int nFactorial($n) / int nFactorial($r) * int nFactorial($n
+-$r);
}
# like the name says, n!
sub nFactorial
{
my $n=shift;
my $product = 1;
while($n>0)
{
$product *= $n--;
}
return $product;
}
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