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 A054439 Fourth derivative of n. 0
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 3, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 5, 6, 7, 0, 1, 2, 3, 0, 1, 2, 3, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 3, 2, 2, 3, 0, 1, 0, 1, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,33 LINKS FORMULA a(n)=A038554(A038554(A038554(A038554(n))))=A038570(A038570(n)) CROSSREFS Cf. A038554, A038570, A038571. Sequence in context: A087734 A073644 A123343 * A318656 A215151 A305806 Adjacent sequences:  A054436 A054437 A054438 * A054440 A054441 A054442 KEYWORD nonn AUTHOR Henry Bottomley, May 11 2000 STATUS approved

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Last modified December 12 17:59 EST 2019. Contains 329960 sequences. (Running on oeis4.)