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Omni-MATH / How many 5-digit numbers (abcde)¯ exist such that digits b and d are each the sum of the digits to their immediate left and right? (That is, b=a+c and d=c+e.)

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problem

How many 5-digit numbers abcde¯\overline{a b c d e} exist such that digits bb and dd are each the sum of the digits to their immediate left and right? (That is, b=a+cb=a+c and d=c+ed=c+e.)
Plain-text mathematical notation (without MathML)
How many 5-digit numbers (abcde)¯ exist such that digits b and d are each the sum of the digits to their immediate left and right? (That is, b=a+c and d=c+e.)
Original LaTeX notation
How many 5-digit numbers $\overline{a b c d e}$ exist such that digits $b$ and $d$ are each the sum of the digits to their immediate left and right? (That is, $b=a+c$ and $d=c+e$.)

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