A076508 3 people at a party are saying Hello to each other. Person " says Hello Hello. Person 3 counts the times Hello has been said and says Hello thrice that number. Person 1 says Hello equal to the sum of Hello's and then it is Person 2 again. This is the total of Hello's said.

2, 8, 16, 48, 192, 384, 1152, 4608, 9216, 27648, 110592, 221184, 663552, 2654208, 5308416, 15925248, 63700992, 127401984, 382205952, 1528823808, 3057647616, 9172942848, 36691771392, 73383542784, 220150628352, 880602513408