curiously_enough
1. [ adverb ] curious (or funny or interesting or odd or strange) though it may seem
Synonyms: oddly_enough strangely_enough interestingly_enough funnily_enough
Examples:

"curiously enough, he didn't recognize his old friend" "interestingly enough, America is now dependent on Africa for a large part of its oil" "oddly enough, he hasn't mentioned it"