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.

A298369 a(n) = a(n-1) + a(n-2) + 2*a(floor(n/2)) + 3*a(floor(n/3)) + ... + n*a(floor(n/n)), where a(0) = 1, a(1) = 1, a(2) = 1.

Table of values

n a(n)
0 1
1 1
2 1
3 7
4 17
5 38
6 87
7 164
8 318
9 576
10 1040
11 1773
12 3134
13 5241
14 8877
15 14728
16 24579
17 40298
18 66585
19 108610
20 178004
21 289717
22 472312
23 766643
24 1247081
25 2021980
26 3281557
27 5316888
28 8619474
29 13957420
30 22611507
31 36603571
32 59270152
33 95931095
34 155290091
35 251310597

List of values

[1, 1, 1, 7, 17, 38, 87, 164, 318, 576, 1040, 1773, 3134, 5241, 8877, 14728, 24579, 40298, 66585, 108610, 178004, 289717, 472312, 766643, 1247081, 2021980, 3281557, 5316888, 8619474, 13957420, 22611507, 36603571, 59270152, 95931095, 155290091, 251310597]