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.

A171549 a(n) is the n-th "strange number", where "strange numbers" are defined as follows: using every other Fibonacci number (starting with offset 1), the shortest way to add up these Fibonacci numbers so that the sum equals n, where the digits are indices in the "every other Fibonacci number" sequence.

Table of values

n a(n)
1 1
2 2
3 21
4 22
5 3
6 31
7 32
8 321
9 322
10 33
11 331
12 332
13 4
14 41
15 42
16 421
17 422
18 43
19 431
20 432
21 4321
22 4322
23 433
24 4331
25 4332
26 44
27 441
28 442
29 4421
30 4422
31 443
32 4431
33 4432
34 5
35 51
36 52
37 521
38 522
39 53
40 531
41 532
42 5321
43 5322
44 533
45 5331
46 5332
47 54
48 541
49 542
50 5421
51 5422
52 543
53 5431
54 5432

List of values

[1, 2, 21, 22, 3, 31, 32, 321, 322, 33, 331, 332, 4, 41, 42, 421, 422, 43, 431, 432, 4321, 4322, 433, 4331, 4332, 44, 441, 442, 4421, 4422, 443, 4431, 4432, 5, 51, 52, 521, 522, 53, 531, 532, 5321, 5322, 533, 5331, 5332, 54, 541, 542, 5421, 5422, 543, 5431, 5432]

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

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