|
Search: id:A053810
|
|
|
| A053810 |
|
Prime powers of prime numbers. |
|
+0
21
|
|
| 4, 8, 9, 25, 27, 32, 49, 121, 125, 128, 169, 243, 289, 343, 361, 529, 841, 961, 1331, 1369, 1681, 1849, 2048, 2187, 2197, 2209, 2809, 3125, 3481, 3721, 4489, 4913, 5041, 5329, 6241, 6859, 6889, 7921, 8192, 9409, 10201, 10609, 11449, 11881, 12167
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
T. D. Noe, Table of n, a(n) for n=1..9965
|
|
FORMULA
|
a(n) = A053811(n)^A053812(n). - David Wasserman (dwasserm(AT)earthlink.net), Feb 17 2006
|
|
MATHEMATICA
|
pp={}; Do[if=FactorInteger[n]; If[Length[if]==1&&PrimeQ[if[[1, 1]]]&&PrimeQ[if[[1, 2]]], pp=Append[pp, n]], {n, 13000}]; pp
Sort[ Flatten[ Table[ Prime[n]^Prime[i], {n, 1, PrimePi[ Sqrt[12800]]}, {i, 1, PrimePi[ Log[ Prime[n], 12800]]}]]]
|
|
CROSSREFS
|
Cf. A000040, A000961, A053811, A053812.
Sequence in context: A093771 A051676 A114129 this_sequence A076702 A051761 A114377
Adjacent sequences: A053807 A053808 A053809 this_sequence A053811 A053812 A053813
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Henry Bottomley (se16(AT)btinternet.com), Mar 28 2000
|
|
EXTENSIONS
|
More terms from David Wasserman (dwasserm(AT)earthlink.net), Feb 17 2006
|
|
|
Search completed in 0.002 seconds
|
