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A102178 Iccanobirt semiprime indices (8 of 15): Indices of semiprime numbers in A102118. 1
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified November 27 01:16 EST 2021. Contains 349344 sequences. (Running on oeis4.)