Arthur D. answered • 12/09/17
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3 4 6 9 13 18 24
add 1 to 3 to get 4
add 2 to 4 to get 6
add 3 to 6 to get 9
add 4 to 9 to get 13
add 5 to 13 to get 18
add 6 to 18 to get 24
add 7 to 24 to get 31 answer
3 6 4 8 6 12 10
2*3=6, 2*4=8, 2*6=12, 2*10=20 answer
David W.
3 6 4 8 6 12 10
2*3=6, 2*4=8, 2*6=12, 2*10=20 answer
2*3=6, 2*4=8, 2*6=12, 2*10=20 answer
Alternate: an = 2*an-1 for even values of n
an = an-1 - 2 for odd values of n
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12/09/17
David W.
Alternate the formulas:
an = 2*an-1 for odd values of n
an = an-1 - 2 for even values of n
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12/09/17
Mark M.
With respect, would not both define both depending on the value of an-1?
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12/10/17
Mark M.
12/09/17