HTML RESULT 
{sequence 25, push='mySequence'}
{pull mySequence, make,   star} {$sequence} {/pull}
1 13 37 73 121 181 253 337 433 541 661 793 937 1093 1261 1441 1633 1837 2053 2281 2521 2773 3037 3313 3601
{pull mySequence, keep,   star} {$sequence} {/pull}
1 13
{pull mySequence, remove, star} {$sequence} {/pull}
2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 21 22 23 24 25
{pull mySequence, flag,   star} {$sequence} {/pull}
1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0