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
Keywords
Examples
A308712(2)=4, so a(4)=2.
Links
- Rémy Sigrist, Table of n, a(n) for n = 0..10000
- Rémy Sigrist, PARI program for A340272
Crossrefs
Cf. A308712.
Programs
-
PARI
See Links section.
Extensions
a(0) = 0 added and escape clause adjusted by Rémy Sigrist, Jan 17 2021