|
Search: id:A133062
|
|
|
| A133062 |
|
5*p^5 - 3*p^3 + 2*p^2. Coefficients and exponents are the prime numbers in decreasing order and p is the n-th prime. |
|
+0
1
|
| |
|
|
OFFSET
|
1,1
|
|
|
FORMULA
|
a(n) = 5*(p(n))^5 - 3*(p)n))^3 + 2*(p(n))^2, where p(n)=A000040(n).
|
|
EXAMPLE
|
a(4)=83104 because the 4th prime is 7, 5*7^5=84035, 3*7^3=1029, 2*7^2=98 and we can write 84035-1029+98=83104.
|
|
CROSSREFS
|
Cf. A000290, A000578, A000584, A045991, A133071. Prime numbers: A000040.
Sequence in context: A033696 A112067 A120089 this_sequence A023096 A137416 A109117
Adjacent sequences: A133059 A133060 A133061 this_sequence A133063 A133064 A133065
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Omar E. Pol (info(AT)polprimos.com), Nov 05 2007
|
|
|
Search completed in 0.002 seconds
|
