a(n) is number of n-digit positive integers in which the product of the digits in the even positions equals the product of the digits in the odd positions.

A379908

a(n) is number of n-digit positive integers in which the product of the digits in the even positions equals the product of the digits in the odd positions.

Terms

    a(0) =1a(1) =9a(2) =32a(3) =380a(4) =4097a(5) =54054a(6) =700099a(7) =8742818a(8) =108476326a(9) =1285917070a(10) =15207121743a(11) =173726013062

External references