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.

A078258 a(n) = numerator(N), where N = 0.123...n (concatenation of 1 to n after decimal point).

Table of values

n a(n)
1 1
2 3
3 123
4 617
5 2469
6 1929
7 1234567
8 6172839
9 123456789
10 1234567891
11 1234567891011
12 15432098637639
13 12345678910111213
14 617283945505560657
15 24691357820222426283
16 3086419727527803285379
17 1234567891011121314151617
18 61728394550556065707580859
19 12345678910111213141516171819

List of values

[1, 3, 123, 617, 2469, 1929, 1234567, 6172839, 123456789, 1234567891, 1234567891011, 15432098637639, 12345678910111213, 617283945505560657, 24691357820222426283, 3086419727527803285379, 1234567891011121314151617, 61728394550556065707580859, 12345678910111213141516171819]

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

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