A102178 Iccanobirt semiprime indices (8 of 15): Indices of semiprime numbers in A102118.

5, 9, 11, 16, 17, 18, 20, 30, 31, 41, 43, 54, 68, 69, 84, 135, 139, 174, 188, 191, 203, 207, 243, 301, 356

Offset

1,1

Links

Table of n, a(n) for n=1..25.

Formula

A102118(a(n)) = A102198(n).

Crossrefs

Cf. A001358, A102118, A102171-A102185, A102198.

Sequence in context: A314593 A137011 A171629 * A337657 A314594 A314595

Adjacent sequences: A102175 A102176 A102177 * A102179 A102180 A102181

Keyword

nonn,more,less,base

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Extensions

a(21)-a(22) from Robert Price, Nov 09 2018

Offset changed to 1 and a(23)-a(25) from Jinyuan Wang, Aug 14 2021

Status

approved