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A152114 Numbers a(n) are obtained by the application of an algorithm which is similar to sieve of Eratosthenes for A000045: retaining A000045(3)=2, we delete all multiples of 2, which are more than 2; retaining A000045(4)=3, we delete all multiples of 3, which are more than 3, etc. 1
2, 3, 5, 13, 89, 233, 1597, 4181, 28657, 514229, 1346269, 24157817, 165580141, 433494437 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Since, as known, A000045((m,n))=(A000045(m),A000045(n)), then the indices of a(n) as terms of A000045, i.e., 3,4,5,7,11,13,..., except of 4, are the consecutive odd primes.

Apparently a variant of A030426. [From R. J. Mathar, Nov 27 2008]

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

Cf. A000045, A005478, A075736.

Sequence in context: A001685 A074691 A139589 * A139095 A005478 A117740

Adjacent sequences:  A152111 A152112 A152113 * A152115 A152116 A152117

KEYWORD

nonn,easy

AUTHOR

Vladimir Shevelev, Nov 24 2008

STATUS

approved

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Last modified June 25 05:41 EDT 2019. Contains 324346 sequences. (Running on oeis4.)