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.

A372473 Least k such that the k-th squarefree number has exactly n zeros in its binary expansion.

Table of values

n a(n)
0 1
1 2
2 7
3 12
4 21
5 40
6 79
7 158
8 315
9 1247
10 1246
11 2492
12 4983
13 9963
14 19921
15 39845
16 79689
17 159361
18 318726
19 637462
20 1274919
21 2549835
22 5099651
23 10199302
24 20398665
25 40797328
26 81594627
27 163189198
28 326378285
29 652756723
30 1305513584
31 2611027095
32 5222054082
33 10444108052

List of values

[1, 2, 7, 12, 21, 40, 79, 158, 315, 1247, 1246, 2492, 4983, 9963, 19921, 39845, 79689, 159361, 318726, 637462, 1274919, 2549835, 5099651, 10199302, 20398665, 40797328, 81594627, 163189198, 326378285, 652756723, 1305513584, 2611027095, 5222054082, 10444108052]

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

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