|
|
A170748
|
|
Expansion of g.f.: (1+x)/(1-28*x).
|
|
50
|
|
|
1, 29, 812, 22736, 636608, 17825024, 499100672, 13974818816, 391294926848, 10956257951744, 306775222648832, 8589706234167296, 240511774556684288, 6734329687587160064, 188561231252440481792, 5279714475068333490176, 147832005301913337724928
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
LINKS
|
|
|
FORMULA
|
|
|
MAPLE
|
k:=29; seq(`if`(n=0, 1, k*(k-1)^(n-1)), n = 0..25); # G. C. Greubel, Sep 25 2019
|
|
MATHEMATICA
|
Join[{1}, Table[29*28^(n-1), {n, 20}]] (* or *) Join[{1}, NestList[28#&, 29, 20]] (* Harvey P. Dale, Feb 05 2012 *)
|
|
PROG
|
(Python) for i in range(31):print(i, 29*28**(i-1) if i>0 else 1) # Kenny Lau, Aug 03 2017
(PARI) vector(26, n, k=29; if(n==1, 1, k*(k-1)^(n-2))) \\ G. C. Greubel, Sep 25 2019
(Magma) k:=29; [1] cat [k*(k-1)^(n-1): n in [1..25]]; // G. C. Greubel, Sep 25 2019
(Sage) k=29; [1]+[k*(k-1)^(n-1) for n in (1..25)] # G. C. Greubel, Sep 25 2019
(GAP) k:=29;; Concatenation([1], List([1..25], n-> k*(k-1)^(n-1) )); # G. C. Greubel, Sep 25 2019
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|