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A304090 Inverse of A282291: if A282291(k) = n, a(n) = k, or 0 if n does not occur in A282291. 2
1, 2, 4, 6, 8, 3, 14, 26, 66, 9, 34, 5, 96, 15, 11, 6531, 193, 67, 386, 7, 17, 35, 770, 27, 6146, 97, 7484, 19, 1538, 10, 3074, 1210614, 37, 194, 21, 71, 14647, 387, 99, 29, 30533, 16, 60824, 39, 69, 771, 122349, 6532, 367278, 6147, 196, 101, 245225, 7485, 41, 31, 389, 1539, 688293, 12, 1535694, 3075, 73 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This is a left inverse of A282291, and also the right inverse if A282291 is a permutation of natural numbers, in which case the fallback-clause is unnecessary.

LINKS

Table of n, a(n) for n=1..63.

FORMULA

For n >= 1, a(A282291(n)) = n.

PROG

(PARI) \\ Use the program given in A282291.

CROSSREFS

Cf. A282291, A302854.

Sequence in context: A239887 A241012 A064745 * A218454 A115425 A116418

Adjacent sequences:  A304087 A304088 A304089 * A304091 A304092 A304093

KEYWORD

nonn

AUTHOR

Antti Karttunen, May 17 2018

STATUS

approved

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Last modified June 4 08:18 EDT 2020. Contains 334825 sequences. (Running on oeis4.)