What is the sum of the sequence 5, 9, 13 ... if there are 36 terms?

asked Sep 18, 2018 194k views

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2 votes

1+5+9+13+17+21+25+29+33+37+41+45+49+53+57+61+65+69+ 73+77+81+85+89+93+97+101+105+109+113+117+121+125+129+133+137+141 = 2555

Andrea Mauro answered Sep 24, 2018

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