Lambda series

• Argument before the ... can be a lambda
• Previous elements of the list serve as inputs to lambda

say ~( 2, { $^x + 3 } ... 20 )
# 2 5 8 11 14 17 20

- - - -

say ~( 2, *+3 ... 20 )
# 2 5 8 11 14 17 20

- - - -

say ~(True, !* ... * )[^10]