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What number is missing from this pattern1,5,13,25,_,61,85

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  1. 27 May, 13:53
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    First number is 5.

    second is 5 + (4 * 2) = 5 + 8 = 13

    third is 5 + (4 * 2) * (4 * 3) = 5 + 8 + 12 = 25

    fourth is 5 + (4 * 2) * (4 * 3) + (4 * 4) = 5 + 8 + 12 + 16 = 41

    fifth is 5 + (4 * 2) * (4 * 3) + (4 * 4) + (4 * 5) = 5 + 8 + 12 + 16 + 20 = 61

    sixth is 5 + (4 * 2) * (4 * 3) + (4 * 4) + (4 * 5) + (4 * 6) = 5 + 8 + 12 + 16 + 20 + 24 = 85

    So missing number is 41
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