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.

A133468 A080814 complemented, then interpreted as binary and then re-expressed in decimal form (e.g., "1221" = "0110"). Alternately, view as A080814 with "1" mapped to "1" and "2" mapped to "0".

Table of values

n a(n)
0 1
1 2
2 9
3 150
4 38505
5 2523490710
6 10838310072981296745
7 199931532107794273605284333428918544790
8 68033174967769840440887906939858451149105560803546820641877549596291376780905

List of values

[1, 2, 9, 150, 38505, 2523490710, 10838310072981296745, 199931532107794273605284333428918544790, 68033174967769840440887906939858451149105560803546820641877549596291376780905]

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

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