|
| |
|
|
A063076
|
|
Differences of A011757 ("Primes with square indices").
|
|
2
| |
|
|
5, 16, 30, 44, 54, 76, 84, 108, 122, 120, 166, 182, 184, 234, 192, 260, 264, 294, 304, 342, 378, 342, 408, 426, 414, 468, 488, 474, 516, 576, 588, 576, 604, 590, 696, 694, 728, 694, 756, 828, 774, 776, 870, 862, 852, 1010, 922, 998, 916, 1020, 1032, 1110
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Does a(n)=k^2 have infinitely many solutions? E.g. 16=4^2; 576=24^2...
|
|
|
LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
|
|
|
PROG
| (PARI) j=[]; for(n=1, 150, j=concat(j, prime((n+1)^2)-prime(n^2))); j
(PARI) { default(primelimit, 2*10^7); for (n=1, 1000, write("b063076.txt", n, " ", prime((n+1)^2) - prime(n^2)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 17 2009]
|
|
|
CROSSREFS
| Cf. A011757, A063082.
Sequence in context: A030573 A063290 A134594 * A132479 A045944 A038361
Adjacent sequences: A063073 A063074 A063075 * A063077 A063078 A063079
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Santi Spadaro (spados(AT)katamail.com), Aug 04 2001
|
|
|
EXTENSIONS
| More terms from Jason Earls (zevi_35711(AT)yahoo.com), Aug 05 2001
|
| |
|
|
