{sequence even, rows=5} {$sequence} {/sequence}
2 4 6 8 10
{sequence nand=4, rows=10} {$sequence} {/sequence}
-1 -1 -1 -5 -5 -5 -5 -1 -1 -1
{sequence even, nand=4, rows=5} {$sequence} {/sequence}
-1 -5 -5 -1 -1