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Question -

Write Python script to calculate sum of following series :
s = (1) + (1+2) + (1+2+3) +…+ (1+2+3+…+n)



Answer -

sum 0
n = int (raw_input (“Enter the value of n :”)]
for a in range (2, n+2):
term = 0
for b in range (1,1):
term + = b
print “Term”, (a-1), “:”,term
sum + = term
print “Sum of”, n, “term is”, sum

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