Play/single/enneadecagonal

HTML	RESULT
{sequence even, rows=5} {$sequence} {/sequence}	2 4 6 8 10
{sequence enneadecagonal, rows=10} {$sequence} {/sequence}	1 19 54 106 175 261 364 484 621 775
{sequence even, enneadecagonal, rows=5} {$sequence} {/sequence}	19 106 261 484 775