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A088252 n-th row of the following triangle contains smallest set of n primes which form n successive terms of an arithmetic progression from the 2nd to (n+1)th term with the first term 1. Sequence contains the leading diagonal. 4
2, 3, 7, 1321, 54151, 152461, 3589741, 4102561, 116645455081, 4344917276701, 20825699190451, 852277147361641, 11417019330356641 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjectures: (1) Sequence is infinite. (2) For every n there are infinitely many arithmetic progressions with n successive primes.

A088252(n)=n*A088250(n)+1=n*A088251(n)-n+1. - Farideh Firoozbakht, Feb 21 2004

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

2

2 3

3 5 7

331 661 991 1321

...

CROSSREFS

Cf. A002110, A088250, A088251.

Sequence in context: A077524 A238400 A266276 * A196303 A048979 A088332

Adjacent sequences:  A088249 A088250 A088251 * A088253 A088254 A088255

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Sep 26 2003

EXTENSIONS

More terms from Farideh Firoozbakht, Feb 21 2004

STATUS

approved

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Last modified May 27 04:05 EDT 2019. Contains 323597 sequences. (Running on oeis4.)