

A075854


Smallest integer composed of digits 1..n such that no subsequence is repeated and every possible subsequence of length 2 appears.


0



11, 11221, 1121322331, 11213142232433441, 11213141522324253343544551, 1121314151622324252633435364454655661, 11213141516172232425262733435363744546475565766771, 11213141516171822324252627283343536373844546474855657586676877881, 1121314151617181922324252627282933435363738394454647484955657585966768697787988991
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