Here's the answer! (Now that mathjerk has probably had to hand in his homework)
2,4,10,28,82
subtracting adjacent terms to look at the differences:
4-2=2, 10-4=6, 28-10=18, 82-28=54...
2, 6, 18, 54...
as you can see, each of these terms is 3 times the previous one, so to carry on this sequence we get
2, 6, 18, 54, 54*3=162, 162*3=486, 486*3=1458
2, 6, 18, 54, 162, 486, 1458
now, to work outt the original sequence, we simply add these on to the previous terms
2, 4, 10, 28, 82, 82+162=244, 244+486=730, 730+1458=2188
so the final solution is
2, 4, 10, 28, 82, 244, 730, 2188...
Hope this helps anyone who was scratching their head!
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