References to A088117

Let the decimal expansion of n be abcd...; then a(n) = {a*bcd... + b*acd... + c*abc... + ...} + {ab*cd} + ... . That is, a(n)=sum over all the digit strings of the product (number obtained by deleting a digit string) * (deleted digit string).
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 0, 3, 6

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