Suited Connectors--Probability of OESD or 4-flush?

[ctv1116]

Given a suited connector between JT and 45 (you can get the full range of possible straights), what's the probability that you will have either an OESD or a 4-flush after the flop?

[BruceZ]

19.1%. See this thread where the same answer is arrived at by different methods.