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.

A221943 Floor(sqrt(7*2^n)).

Table of values

n a(n)
0 2
1 3
2 5
3 7
4 10
5 14
6 21
7 29
8 42
9 59
10 84
11 119
12 169
13 239
14 338
15 478
16 677
17 957
18 1354
19 1915
20 2709
21 3831
22 5418
23 7662
24 10836
25 15325
26 21673
27 30651
28 43347
29 61303
30 86695
31 122606
32 173391
33 245213
34 346783
35 490426
36 693567
37 980853
38 1387135
39 1961706
40 2774271
41 3923412
42 5548542
43 7846824
44 11097085
45 15693648
46 22194170
47 31387297

List of values

[2, 3, 5, 7, 10, 14, 21, 29, 42, 59, 84, 119, 169, 239, 338, 478, 677, 957, 1354, 1915, 2709, 3831, 5418, 7662, 10836, 15325, 21673, 30651, 43347, 61303, 86695, 122606, 173391, 245213, 346783, 490426, 693567, 980853, 1387135, 1961706, 2774271, 3923412, 5548542, 7846824, 11097085, 15693648, 22194170, 31387297]

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

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