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.

A077147 a(n) = floor({concatenation 123 ... up to n}/n).

Table of values

n a(n)
1 1
2 6
3 41
4 308
5 2469
6 20576
7 176366
8 1543209
9 13717421
10 1234567891
11 112233444637
12 10288065758426
13 949667608470093
14 88183420786508665
15 8230452606740808761
16 771604931881950821344
17 72621640647713018479506

List of values

[1, 6, 41, 308, 2469, 20576, 176366, 1543209, 13717421, 1234567891, 112233444637, 10288065758426, 949667608470093, 88183420786508665, 8230452606740808761, 771604931881950821344, 72621640647713018479506]

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

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