luka.py

def g(input, offset=0):
    return [sum(input[:i+1]) + offset if x else None for i, x in enumerate(input)]

def f(input, offset_carry=0):
    # ~~ recursive ~~
    # base case:
    if not input:
        return []
    # recursive case:
    current = input[0]
    current_sum = sum(current)
    # e.g. [[1, 2, None]]             + [[3, None], [None, 4, 5]]
    return [g(current, offset_carry)] + f(input[1:], offset_carry + current_sum)


wow = [[True, False, True, True], [False, False, False, True]]

print(f(wow))

# prints:
# [[1, None, 2, 3], [None, None, None, 4]]