KeepRemoveFlag/exponentiation

HTML	RESULT
{sequence 25, push='mySequence'}
{pull mySequence, make, exponentiation=4} {$sequence} {/pull}	1 16 81 256 625 1296 2401 4096 6561 10000 14641 20736 28561 38416 50625 65536 83521 104976 130321 160000 194481 234256 279841 331776 390625
{pull mySequence, keep, exponentiation=4} {$sequence} {/pull}	1 16
{pull mySequence, remove, exponentiation=4} {$sequence} {/pull}	2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 22 23 24 25
{pull mySequence, flag, exponentiation=4} {$sequence} {/pull}	1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0