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.

A372449 a(n) = A000523(A372444(n)); One less than the length of binary expansion of the n-th iterate of 27 with A371094.

Table of values

n a(n)
0 4
1 7
2 12
3 23
4 44
5 84
6 165
7 326
8 650
9 1297
10 2590
11 5177
12 10349
13 20695
14 41386
15 82766
16 165527
17 331048
18 662093
19 1324181
20 2648358
21 5296712
22 10593418
23 21186832
24 42373658
25 84747311
26 169494616
27 338989224
28 677978441
29 1355956875
30 2711913744
31 5423827481
32 10847654953
33 21695309901
34 43390619796
35 86781239588
36 173562479173
37 347124958346

List of values

[4, 7, 12, 23, 44, 84, 165, 326, 650, 1297, 2590, 5177, 10349, 20695, 41386, 82766, 165527, 331048, 662093, 1324181, 2648358, 5296712, 10593418, 21186832, 42373658, 84747311, 169494616, 338989224, 677978441, 1355956875, 2711913744, 5423827481, 10847654953, 21695309901, 43390619796, 86781239588, 173562479173, 347124958346]

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

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