Bring Columns across and eliminating blanks

[cherokee]

1	BB	BC	BD	BE	BF	BG	BH	BI	BJ	BK	BL	BM	BN	BO	BP	BQ	BR	BS	BT
2
3										0	1		3				7		9
4
5	0	1	3	7	9
6

<colgroup><col><col span="19"></colgroup><tbody>
</tbody>

Line 3 is the result of a formula.
What formula do I need to then convert Line 3 into Line 5. On this example I just typed the numbers in line 5 to demonstrate what I need it to look like by using a formula.
The blanks on Line 3 contain "" in their formula.

 

[cherokee]

=iferror(index($bb3:$bt3,aggregate(15,6,(column($bb3:$bt3)-column($bb3)+1)/($bb3:$bt3<>""),columns($bb3:bb3))),"")