+155 +155 
+449 +449 off-topic
Oct 27, 2019
+12 The odd intergers are arrranged ito sets, each suceeding set continuing from the previous, and containing one more number as follows: {1},{3,5},{7,9,11}, {13,15,17,19},... What is the sum of the numbers in the 22nd set?
+12 +12 +12 +12 +12
