A347691 - OEIS

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A347691

a(n) = index of n in A308387, or -1 if n does not appear in A308387.

2

20, 1, 11, 10, 8, 3, 38, 5, 17, 4, 6, 19, 9, 16, 24, 14, 21, 27, 12, 2, 25, 36, 28, 15, 32, 43, 18, 23, 74, 33, 37, 39, 42, 29, 44, 22, 31, 46, 45, 56, 47, 52, 26, 48, 61, 60, 41, 49, 53, 73, 59, 13, 57, 91, 64, 40, 66, 62, 51, 7, 30, 58, 101, 55, 70, 69, 86, 34, 75, 65, 80, 78, 50

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..6867

EXAMPLE

A308387(20) = 1, so a(1) = 20.

CROSSREFS

Sequence in context: A040414 A040415 A040416 * A040417 A278414 A003833

Adjacent sequences: A347688 A347689 A347690 * A347692 A347693 A347694

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 26 2021

STATUS

approved