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A329904 Position of A329899(n) in A025487. 8
1, 1, 2, 2, 3, 4, 5, 6, 4, 7, 3, 8, 9, 10, 11, 12, 13, 14, 15, 6, 16, 9, 5, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 11, 31, 32, 8, 33, 13, 7, 34, 35, 36, 37, 38, 39, 40, 41, 42, 22, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 15, 57, 58, 20, 12, 59, 60, 61, 17, 62, 10, 63, 64, 65, 66, 67, 68, 69 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Restricted growth sequence transform of A329899.

Each positive natural number occurs exactly twice.

For all i, j > 1:

  a(i) = a(j) => A329907(i) = A329907(j).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A085089(A329899(n)).

PROG

(PARI) A329904(n) = { my(k=A329899(n)); for(i=1, oo, if(A025487(i)==k, return(i))); };

CROSSREFS

Cf. A025487, A085089, A329899, A329905, A329907.

Sequence in context: A318284 A241321 A093936 * A331307 A331306 A119353

Adjacent sequences:  A329901 A329902 A329903 * A329905 A329906 A329907

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 24 2019

STATUS

approved

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Last modified May 9 13:42 EDT 2021. Contains 343742 sequences. (Running on oeis4.)