login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A203149 (n-1)-st elementary symmetric function of {2,8,26,80,242,...,-1+3^n}. 2
1, 10, 276, 22496, 5477312, 3995536896, 8740106791936, 57347917373194240, 1128805788065906196480, 66655379003341682687344640, 11807831483305724934163060490240, 6275171273199511284527725270165094400, 10004652813703079731923092657993740504268800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..13.

MATHEMATICA

f[k_] := 3^k - 1; t[n_] := Table[f[k], {k, 1, n}]

a[n_] := SymmetricPolynomial[n - 1, t[n]]

Table[a[n], {n, 1, 16}] (* A203149 *)

CROSSREFS

Cf. A203148.

Sequence in context: A221526 A153331 A290202 * A117654 A067427 A157713

Adjacent sequences:  A203146 A203147 A203148 * A203150 A203151 A203152

KEYWORD

nonn

AUTHOR

Clark Kimberling, Dec 29 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 24 12:01 EDT 2022. Contains 354033 sequences. (Running on oeis4.)