>>> Euler(0,3,1,30)
[1, 1.1, 1.2100000000000002, 1.3310000000000004, 1.4641000000000006, 1.6105100000000008, 1.771561000000001, 
1.9487171000000014, 2.1435888100000016, 2.357947691000002, 2.5937424601000023, 2.853116706110003, 
3.1384283767210035, 3.4522712143931042, 3.797498335832415, 4.177248169415656, 4.594972986357222, 
5.054470284992944, 5.559917313492239, 6.115909044841463, 6.72749994932561, 7.400249944258172, 8.140274938683989, 
8.954302432552389, 9.849732675807628, 10.834705943388391, 11.91817653772723, 13.109994191499954, 
14.420993610649951, 15.863092971714948, 17.449402268886445]