“…It is not currently known if each of these cases has an interpolated version which is related (similar to (2)) to the critical L-value of a modular form of weight 4. Second, we echo the lament in [28] concerning the lack of algorithmic approaches in directly proving congruences, such as (15), between binomial sums. Third, can one extend the results in [19] to verify the cases in Example 3.7 and, more generally, find an explicit formula for the ratio L(f k , k − 1)/L(f k , 2) in terms of a rational number and a power of π?…”