|
Search: id:A093741
|
|
|
| A093741 |
|
Number of prime pairs below 10^n having a difference of 12. |
|
+0
3
|
| |
|
|
OFFSET
|
1,3
|
|
|
FORMULA
|
Count prime pairs below 10^n having a difference of 12
|
|
EXAMPLE
|
a(3)=7 because there are 7 prime gaps of 12 below 10^3
|
|
PROGRAM
|
UBASIC: 20 N=1:dim T(34); 30 A=nxtprm(N); 40 N=A; 50 B=nxtprm(N); 60 D=B-A; 70 for x=2 to 34 step 2; 80 if D=X and B<10^2+1 then T(X)=T(X)+1; 90 next X; 100 if B>10^2+1 then 140; 110 B=A; 120 N=N+1; 130 goto 30; 140 for x=2 to 34 step 2; 150 print T(X); , 160 next (This program simultaneously finds values from 2 to 34 -- if gap=2 add 1-- adjust lines 80 and 100 for desired 10^n)
|
|
CROSSREFS
|
Cf. A007508 A093740 A093742.
Adjacent sequences: A093738 A093739 A093740 this_sequence A093742 A093743 A093744
Sequence in context: A101746 A001921 A098362 this_sequence A139742 A120049 A067420
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Enoch Haga (Enokh(AT)comcast.net), Apr 15 2004
|
|
|
Search completed in 0.002 seconds
|
