HTML RESULT 
{sequence 25, push='mySequence'}
{pull mySequence, make,   tetrahedral} {$sequence} {/pull}
1 4 10 20 35 56 84 120 165 220 286 364 455 560 680 816 969 1140 1330 1540 1771 2024 2300 2600 2925
{pull mySequence, keep,   tetrahedral} {$sequence} {/pull}
1 4 10 20
{pull mySequence, remove, tetrahedral} {$sequence} {/pull}
2 3 5 6 7 8 9 11 12 13 14 15 16 17 18 19 21 22 23 24 25
{pull mySequence, flag,   tetrahedral} {$sequence} {/pull}
1 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0