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A073921 Odd numbers which retain their position in the rearrangement of A073920: terms of A073920 for which a(n) = 2n-1. 1
1, 41, 43, 45, 47 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

No further term below 21000000. Sequence is probably finite because the preferential placement of primes at earlier places than nonprimes in A073920 leads to 2 clearly separated branches in the plot of A073920 as a result of the prime number theorem. This leaves a void in between, in which the current sequence fails to find more points. - R. J. Mathar, Feb 13 2008

LINKS

Table of n, a(n) for n=1..5.

FORMULA

{2n-1: A073920(n)=2n-1}. - R. J. Mathar, Feb 13 2008

CROSSREFS

Cf. A073920.

Sequence in context: A283598 A041839 A098064 * A118124 A054057 A282319

Adjacent sequences:  A073918 A073919 A073920 * A073922 A073923 A073924

KEYWORD

more,nonn

AUTHOR

Amarnath Murthy, Aug 19 2002

STATUS

approved

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Last modified June 12 10:29 EDT 2021. Contains 344946 sequences. (Running on oeis4.)