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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A301582 G.f.: Sum_{n>=0} 3^n * ((1+x)^n - 1)^n.

Table of values

n a(n)
0 1
1 3
2 36
3 765
4 22932
5 886707
6 41971041
7 2349915543
8 151893243711
9 11131097539221
10 911906584505874
11 82586031357156975
12 8192750710914222984
13 883506535094875209327
14 102907862475072248379060
15 12875067336646598300376165
16 1722014444866824121524712497
17 245185575019136812676809863351
18 37027348593726417935247243009495
19 5911490521308027393188499233189367
20 994821814352463817234026392636083551

List of values

[1, 3, 36, 765, 22932, 886707, 41971041, 2349915543, 151893243711, 11131097539221, 911906584505874, 82586031357156975, 8192750710914222984, 883506535094875209327, 102907862475072248379060, 12875067336646598300376165, 1722014444866824121524712497, 245185575019136812676809863351, 37027348593726417935247243009495, 5911490521308027393188499233189367, 994821814352463817234026392636083551]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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