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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.

A307218 Numbers x with k digits in base 2 (MSD(x)_2 = d_1, LSD(x)_2 = d_k) that are equal to the product of the positions of 1's (see examples and formula).

Table of values

n a(n)
1 1
2 1350
3 47520
4 1995840
5 59376240

List of values

[1, 1350, 47520, 1995840, 59376240]

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

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