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.

A143116 a(n) = the smallest positive multiple of n that has exactly n (nonleading) 0's in its binary representation.

Table of values

n a(n)
1 2
2 4
3 18
4 16
5 65
6 132
7 518
8 256
9 1026
10 2050
11 4224
12 8196
13 16640
14 65548
15 262155
16 65536
17 262208
18 524304
19 1050624
20 2097160
21 8388618
22 8388864
23 33554562
24 33554448
25 67174400
26 134218240
27 268435458
28 1073741844
29 1073807360
30 8589934620

List of values

[2, 4, 18, 16, 65, 132, 518, 256, 1026, 2050, 4224, 8196, 16640, 65548, 262155, 65536, 262208, 524304, 1050624, 2097160, 8388618, 8388864, 33554562, 33554448, 67174400, 134218240, 268435458, 1073741844, 1073807360, 8589934620]

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

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