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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.

A083449 a(n) = A019566(n)/9, where A019566(n) = concat(n,...,1) - concat(1,...,n).

Table of values

n a(n)
1 0
2 1
3 22
4 343
5 4664
6 58985
7 713306
8 8367627
9 96021948
10 -150891621
11 -13731137410
12 -260644605199
13 86159119727012
14 19839246664059223
15 3106259112208391434
16 422859356777752723645
17 53509280234443297055856
18 6473262479112108841388067
19 759559693477989774385720278

List of values

[0, 1, 22, 343, 4664, 58985, 713306, 8367627, 96021948, -150891621, -13731137410, -260644605199, 86159119727012, 19839246664059223, 3106259112208391434, 422859356777752723645, 53509280234443297055856, 6473262479112108841388067, 759559693477989774385720278]

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

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