|
|
|
|
2, 3, 7, 19, 29, 43, 47, 71, 83, 101, 113, 193, 197, 229, 241, 271, 283, 293, 311, 347, 383, 439, 457, 463, 491, 499, 523, 587, 619, 643, 683, 733, 797, 827, 857, 863, 919, 991, 1021, 1031, 1091, 1151, 1187, 1289, 1367, 1549, 1567, 1619, 1637, 1693, 1697, 1733, 1741, 1811, 1867, 1871, 1907
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
Michael De Vlieger, Scatterplot of A161671(n), n = 1..120, showing and labeling primes p in this sequence in red and blue. The red primes are duplicated and are listed in A220220. We plot in green duplicated composite terms.
|
|
FORMULA
|
|
|
MAPLE
|
isA214627 := proc(n)
if isprime(n) then
for j from 1 do
return true;
return false;
end if;
end do:
else
false;
end if;
end proc:
for n from 2 to 2000 do
if isA214627(n) then
printf("%d, ", n) ;
end if;
|
|
MATHEMATICA
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|