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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.

A299865 The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 2.

Table of values

n a(n)
1 2
2 20
3 198
4 1981
5 19818
6 198179
7 1981783
8 19817838
9 198178379
10 1981783783
11 19817837830
12 198178378308
13 1981783783079
14 19817837830783
15 198178378307837
16 1981783783078363
17 19817837830783638
18 198178378307836379
19 1981783783078363783
20 19817837830783637836
21 198178378307836378362
22 1981783783078363783612

List of values

[2, 20, 198, 1981, 19818, 198179, 1981783, 19817838, 198178379, 1981783783, 19817837830, 198178378308, 1981783783079, 19817837830783, 198178378307837, 1981783783078363, 19817837830783638, 198178378307836379, 1981783783078363783, 19817837830783637836, 198178378307836378362, 1981783783078363783612]

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

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