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 A369137 Inverse permutation to A369136. 3
 1, 2, 3, 4, 6, 5, 11, 7, 8, 9, 51, 10, 28, 14, 12, 15, 1602, 13, 194, 16, 18, 60, 307, 17, 23, 35, 20, 21, 681, 19 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A284456(a(n)) is the smallest number whose prime tower factorization tree has Matula-Göbel number n. After a(31), the sequence continues 25, 71, 1726, 31, 22, 1304, 221, 44, 24, ?, 26, ?, 79, 27, 343, ?, 29, 47, 33, 1867, 50, ?, 32, 98, 34, 250, 739, ?, 30, ?, ?, 37, 42, 66, 91, ?, 1935, 381, 41, ... . LINKS Table of n, a(n) for n=1..30. Index entries for sequences related to Matula-Göbel numbers. FORMULA A369015(A284456(a(n))) = A369136(a(n)) = n. A369099(n) = A284456(a(n)). A369138(a(A007097(n))) = A025488(A014221(n-1)). A369138(a(2^n)) = A098719(n+1). CROSSREFS Cf. A007097, A014221, A025488, A098719, A284456, A369015, A369099, A369136, A369138. Sequence in context: A263268 A257472 A064787 * A075160 A119755 A206710 Adjacent sequences: A369134 A369135 A369136 * A369138 A369139 A369140 KEYWORD nonn,more AUTHOR Pontus von Brömssen, Jan 14 2024 STATUS approved

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Last modified April 21 04:54 EDT 2024. Contains 371850 sequences. (Running on oeis4.)