A340272 First position of n in A308712, or -1 if that number is not in A308712.

0, 1, 3, 5, 2, 7, 4, 17, 9, 14, 6, 19, 11, 24, 16, 29, 8, 21, 13, 65, 26, 83, 18, 31, 10, 62, 23, 93, 15, 54, 28, 98, 85, 59, 20, 33, 12, 77, 64, 196, 25, 95, 82, 214, 56, 43, 30, 100, 87, 219, 61, 48, 22, 35, 92, 480, 79, 211, 53, 198, 27, 185, 97, 891, 84, 216, 58

Offset

0,3

Links

Rémy Sigrist, Table of n, a(n) for n = 0..10000

Rémy Sigrist, PARI program for A340272

Example

A308712(2)=4, so a(4)=2.

Prog

(PARI) See Links section.

Crossrefs

Cf. A308712.

Sequence in context: A237058 A285297 A097465 * A120683 A210042 A338872

Adjacent sequences: A340269 A340270 A340271 * A340273 A340274 A340275

Keyword

nonn

Author

J. Lowell, Jan 02 2021

Extensions

a(0) = 0 added and escape clause adjusted by Rémy Sigrist, Jan 17 2021

Status

approved