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A304756 Inverse of A304755: if A304755(k) = n, a(n) = k, or 0 if n does not occur in A304755. 1
1, 2, 4, 6, 19, 3, 32, 12, 9, 18, 62, 5, 488, 31, 23, 87, 1449, 8, 5505, 20, 36, 61, 14658, 11, 96, 487, 15, 33, 50871, 22, 190668, 198, 66, 1448, 44, 7, 736226, 5504, 492, 25, 3482516, 35 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This is a left inverse of A304755, and also the right inverse if A304755 is a permutation of natural numbers, in which case the fallback clause is unnecessary.

LINKS

Table of n, a(n) for n=1..42.

FORMULA

For n >= 1, a(A304755(n)) = n.

PROG

(PARI) \\ Use the program given in A304755.

CROSSREFS

Cf. A304755 (inverse).

Sequence in context: A195328 A294447 A143085 * A005227 A185185 A234019

Adjacent sequences:  A304753 A304754 A304755 * A304757 A304758 A304759

KEYWORD

nonn

AUTHOR

Antti Karttunen, May 20 2018

STATUS

approved

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Last modified August 14 09:14 EDT 2020. Contains 336480 sequences. (Running on oeis4.)