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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.

A195335 a(n) is the smallest Xmas tree prime with a(n-1) as a prefix (starting with 2).

Table of values

n a(n)
1 2
2 211
3 211151
4 2111511013
5 211151101310867
6 211151101310867100673
7 2111511013108671006731000357
8 211151101310867100673100035710000931
9 211151101310867100673100035710000931100000213
10 2111511013108671006731000357100009311000002131000000901
11 211151101310867100673100035710000931100000213100000090110000001797

List of values

[2, 211, 211151, 2111511013, 211151101310867, 211151101310867100673, 2111511013108671006731000357, 211151101310867100673100035710000931, 211151101310867100673100035710000931100000213, 2111511013108671006731000357100009311000002131000000901, 211151101310867100673100035710000931100000213100000090110000001797]

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

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