login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A165658 Denominators of A002110 divided by A102647, starting from the second term of both. 3
1, 1, 1, 4, 6, 48, 64, 96, 576, 1728, 13824, 165888, 1036800, 9953280, 119439360, 297271296, 134369280000, 222953472000, 75246796800, 32105299968000, 229323571200, 568865783808000000, 125150472437760000, 6129819058176000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..24.

PROG

(PARI) a1(n)=prod(i=1, n, prime(i));

b1(n)=prod(i=1, n, prime(n+1)%prime(i));

a(n)=if(n<0, 0, denominator(a1(n)/b1(n)));

for(n=1, 25, print1(a(n) ", "))

CROSSREFS

Cf. A002110, A102647, A165657, A165659, A165660.

Sequence in context: A338814 A134592 A306705 * A066348 A330978 A183369

Adjacent sequences:  A165655 A165656 A165657 * A165659 A165660 A165661

KEYWORD

easy,nonn

AUTHOR

Creighton Dement, Sep 24 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 19 05:41 EST 2022. Contains 350464 sequences. (Running on oeis4.)