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.

A153500 First 3 terms coincide with A152756. For n>3, a(n) is the palindromic number formed from concatenation of 1, 0, A147759(n-3), 0, A147759(n-3), 0 and 1.

Table of values

n a(n)
1 1
2 101
3 10001
4 1010101
5 101101101
6 10101010101
7 1010010100101
8 101010101010101
9 10101101010110101
10 1010101010101010101
11 101010010101010010101
12 10101010101010101010101
13 1010101101010101011010101
14 101010101010101010101010101
15 10101010010101010101001010101

List of values

[1, 101, 10001, 1010101, 101101101, 10101010101, 1010010100101, 101010101010101, 10101101010110101, 1010101010101010101, 101010010101010010101, 10101010101010101010101, 1010101101010101011010101, 101010101010101010101010101, 10101010010101010101001010101]

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

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