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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.

A071268 Sum of all digit permutations of the concatenation of first n numbers.

Table of values

n a(n)
1 1
2 33
3 1332
4 66660
5 3999960
6 279999720
7 22399997760
8 2015999979840
9 201599999798400
10 927359999990726400
11 1064447999999893555200
12 2058376319999997941623680
13 4439635199999999955603648000
14 10585935359999999998941406464000
15 27655756127999999999972344243872000

List of values

[1, 33, 1332, 66660, 3999960, 279999720, 22399997760, 2015999979840, 201599999798400, 927359999990726400, 1064447999999893555200, 2058376319999997941623680, 4439635199999999955603648000, 10585935359999999998941406464000, 27655756127999999999972344243872000]

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

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