Lexicographic Permutations

For the purposes of this problem the characters of the string “Contest Coding” are assigned values, the value assigned to a particular character determined by the position in the string of that character – viz:

‘C’ (1), ‘o’ (2), ‘n’ (3), …etc.…, ‘i’ (12), ‘n’ (13), ‘g’ (14)

That sequence of values is considered the 1st lexicographic permutation; given the characters to which those values are assigned, what nth lexicographic permutation will first contain the sequence of characters “tsetnoC”?

– This puzzle was suggested by Mark Bishop

Remember, to solve this puzzle and appear on the leaderboard, email both your solution and your source code (in any language) to lewiscornwall13@gmail.com. Good luck!!

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