A134246 Quotients A134245(n)/A134244(n).

2, 4, 22, 64, 132, 231, 5472, 8877, 34635, 57550, 75542, 636667, 739799, 1291879, 2081880, 3064827, 4039368, 9433189, 16966370, 211947608, 367298045, 1101086463, 1541079585, 16915330550, 20775909209, 24450416187, 575276374739, 707965641746, 3731987263894

Offset

1,1

Comments

Alternatively: integers of the form A007468(j)/j sorted w.r.t. increasing j. - R. J. Mathar, Nov 16 2007

Links

Table of n, a(n) for n=1..29.

Maple

A000217 := proc(n) n*(n+1)/2 ; end: A007468 := proc(n) add( ithprime(j), j=A000217(n-1)+1..A000217(n)) ; end: for n from 1 do a := A007468(n) ; if a mod n =0 then print(a/n) ; fi ; od: # R. J. Mathar, Nov 16 2007

Crossrefs

Cf. A134244 A134245.

Sequence in context: A271944 A152120 A072355 * A254867 A305492 A220456

Adjacent sequences: A134243 A134244 A134245 * A134247 A134248 A134249

Keyword

nonn

Author

Enoch Haga, Oct 15 2007, Oct 16 2007

Extensions

Better definition from R. J. Mathar, Nov 16 2007

a(24)-a(26) from Max Alekseyev, Jul 29 2011

a(27)-a(28) from Chai Wah Wu, Jan 14 2020

a(29) from Chai Wah Wu, Jan 16 2020

Status

approved