'81'
Hence
3^(0) = 1
3(1) = 3
3^(2) = 9
3^(3) = 37
3^(4) = 81
3^(5) = 243
3^(n) depending on the numerical position of 'n'.
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243
n3
343.
The next term is 91. The sequence differences are: 875 - 874 = 1 = 13 874 - 866 = 8 = 23 866 - 839 = 27 = 33 839 - 775 = 64 = 43 775 - 650 = 125 = 53 650 - 434 = 216 = 63 The next difference is 73 (= 343) which is subtracted from 434 to get the next term: 434 - 343 = 91 The sequence is defined as: U1 = 875 Un+1 = Un - n3 for n > 1
1 8 27 64 125 216 343