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In Note G I described, in complete detail, a method for computing a sequence of Bernoulli numbers on the Analytical Engine — the algorithm often called the first published computer program, written for a machine that was never built.

Commissioned to translate Menabrea's French paper on the Analytical Engine, I spent nine months in 1842–43 adding seven Notes, A to G, about three times longer than the translation, published in Taylor's Scientific Memoirs in September 1843.

I am a mathematician and writer. My work on Charles Babbage's Analytical Engine, a proposed mechanical general-purpose computer, produced the first published computer program and the first account of what such a machine could do beyond calculation.