A   B   C   D   E   F   G   H   I   J   K   L   M   N
17  78  19  23  29  77  95  77   1  11  13  15  15  55
--  --  --  --  --  --  --  --  --  --  --  --  --  --
91  85  51  38  33  29  23  19  17  13  11  14   2   1

2, 15, 825, 725, 1925, 2275, 425, 390, 330, 290, 770, 910, 170, 156, 132, 116, 308, 364, 68, 4 ...

2 ... 2^2 ... 2^3 ... 2^5 ... 2^7 ... etc.

n   output
 5   2275
19   4
40   408

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n->a=2;for(i=1,n,a=[x|x<-a*[17/91,78/85,19/51,23/38,29/33,77/29,95/23,77/19,1/17,11/13,13/11,15/14,15/2,55],x1==x][1]);a

g=.3 :0
((1047856500267924709512946135x%&(96#.inv])5405040820893044303890643137x)([:({.@I.@(=<.){[)*)])^:y 2
)

1047856500267924709512946135x%&(96#.inv])5405040820893044303890643137x
17r91 78r85 19r51 23r38 29r33 77r29 95r23 77r19 1r17 11r13 13r11 15r14 15r2 55

$t=2;for(;@$i++<$argv[1];){foreach([17/91,78/85,19/51,23/38,29/33,77/29,95/23,77/19,1/17,11/13,13/11,15/14,15/2,55/1]as$n){$a=$t*$n;if(preg_match('/^d+$/',$a)){$t=$a;break;}}}echo$t;

<?php
$t=2;
for(;@$i++<$argv[1];){
    foreach([17/91,78/85,19/51,23/38,29/33,77/29,95/23,77/19,1/17,11/13,13/11,15/14,15/2,55/1] as $n){
        $a=$t*$n;
        if(preg_match('/^d+$/',$a)){
            $t=$a;break;
        }
    }
}
echo $t;

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