HTML RESULT 
{sequence 25, push='mySequence'}
{pull mySequence, make,   collatz} {$sequence} {/pull}
0 1 7 2 5 8 16 3 19 6 14 9 9 17 17 4 12 20 20 7 7 15 15 10 23
{pull mySequence, keep,   collatz} {$sequence} {/pull}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
{pull mySequence, remove, collatz} {$sequence} {/pull}
{pull mySequence, flag,   collatz} {$sequence} {/pull}
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1