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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
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
Sequence in context: A263268 A257472 A064787 * A075160 A119755 A206710
KEYWORD
nonn,more
AUTHOR
STATUS
approved

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