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.

A061582 a(1) = 1, a(n) = number obtained by replacing each digit of a(n-1) with three times its value.

Table of values

n a(n)
1 1
2 3
3 9
4 27
5 621
6 1863
7 324189
8 961232427
9 2718369612621
10 6213249182718361863
11 1863961227324621324918324189
12 32418927183662196121863961227324961232427
13 961232427621324918186327183632418927183662196122718369612621

List of values

[1, 3, 9, 27, 621, 1863, 324189, 961232427, 2718369612621, 6213249182718361863, 1863961227324621324918324189, 32418927183662196121863961227324961232427, 961232427621324918186327183632418927183662196122718369612621]

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

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