3-6-9 format created by Emile J. Pinet. The scientist and inventor Nikola Tesla believed that the numbers 3-6-9 held great significance, and in deference to him, the 3-6-9 was invented. An eighteen line rhyming verse with the following rhyme scheme: (aba - cdcefe - ghgijiklk,) with a syllable count of 333, 66666, 999999999. It looks best centered.