cp's OEIS Frontend

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.

A078263 Product of the forward and reverse concatenations of 1 to n.

Table of values

n a(n)
1 1
2 252
3 39483
4 5332114
5 670592745
6 80779853376
7 9449772114007
8 1082152022374638
9 121932631112635269
10 135650052221140070110
11 1371589685334334871208531
12 14951973660666886818972704952
13 161989023197512459256340110001373
14 1744593949735321085709329564827297794

List of values

[1, 252, 39483, 5332114, 670592745, 80779853376, 9449772114007, 1082152022374638, 121932631112635269, 135650052221140070110, 1371589685334334871208531, 14951973660666886818972704952, 161989023197512459256340110001373, 1744593949735321085709329564827297794]

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

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