This sequence sums up prime numbers. The number of terms for each sum is increased by 1:

2                      =  2
3+5                    =  8
7+11+13                = 31
17+19+23+29            = 88
31+37+41+43+47         =199
53+59+61+67+71+73      =384
79+83+89+97+101+103+107=659

© Andreas Rottler

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