login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052338 a(n) = A050443(n-th prime)/(n-th prime). 3
0, 1, 0, 1, 1, 1, 2, 2, 4, 11, 16, 43, 87, 123, 250, 736, 2189, 3152, 9501, 19909, 28861, 88250, 186540, 575703, 2605063, 5556059, 8118935, 17356074, 25389718, 54388168, 789812633, 1700415401, 5380882786, 7903301746, 54185536387, 79678647536, 253610377475 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..1000

PROG

(PARI) a(n) = my(p = prime(n)); polcoef((4-x^3)/(1-x^3-x^4) + O(x^(p+1)), p)/p; \\ Michel Marcus, Mar 04 2019

CROSSREFS

Cf. A000040, A001608, A050443.

Sequence in context: A067920 A280531 A072074 * A153950 A153947 A298778

Adjacent sequences:  A052335 A052336 A052337 * A052339 A052340 A052341

KEYWORD

easy,nonn

AUTHOR

Christian G. Bower, Dec 23 1999

EXTENSIONS

Corrected by Seiichi Manyama, Mar 04 2019

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 September 23 04:54 EDT 2020. Contains 337295 sequences. (Running on oeis4.)