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.

A073428 First n-digit prime in the concatenation of odd integers forbidding leading zeros.

Table of values

n a(n)
1 3
2 13
3 911
4 5791
5 79111
6 105107
7 1232527
8 23252729
9 113151719
10 2527293133
11 57911131517
12 991011031051
13 6769717375777
14 13579111315171
15 135791113151719
16 4547495153555759
17 31517192123252729
18 719212325272931333
19 1131517192123252729
20 71921232527293133353

List of values

[3, 13, 911, 5791, 79111, 105107, 1232527, 23252729, 113151719, 2527293133, 57911131517, 991011031051, 6769717375777, 13579111315171, 135791113151719, 4547495153555759, 31517192123252729, 719212325272931333, 1131517192123252729, 71921232527293133353]

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

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