|
|
A326120
|
|
a(n) is the concatenation of n^1, n^2, ..., n^n.
|
|
0
|
|
|
1, 24, 3927, 41664256, 5251256253125, 6362161296777646656, 749343240116807117649823543, 864512409632768262144209715216777216, 981729656159049531441478296943046721387420489, 10100100010000100000100000010000000100000000100000000010000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
a(100) has 10200 digits.
a(n) is the concatenation of the n terms of the n-th row of A075363 triangle. - Michel Marcus, Sep 15 2019
|
|
LINKS
|
|
|
MAPLE
|
a:= n-> parse(cat(n^j$j=1..n)):
|
|
MATHEMATICA
|
a[n_] := FromDigits@ Flatten@ IntegerDigits[n^Range[n]]; Array[a, 10] (* Giovanni Resta, Sep 12 2019 *)
|
|
PROG
|
(Python)
def a(n): return int("".join(str(n**i) for i in range(1, n+1)))
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,base,easy,less
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|