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.

A192670 Floor-Sqrt transform of central trinomial coefficients (A002426).

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 7
6 11
7 19
8 33
9 56
10 94
11 160
12 271
13 461
14 785
15 1337
16 2279
17 3890
18 6644
19 11357
20 19426
21 33246
22 56930
23 97535
24 167177
25 286665
26 491745
27 843842
28 1448530
29 2487302
30 4272238
31 7340067
32 12614059
33 21682694
34 37279415
35 64108676
36 110268453
37 189700207
38 326408942
39 561733093
40 966869803

List of values

[1, 1, 1, 2, 4, 7, 11, 19, 33, 56, 94, 160, 271, 461, 785, 1337, 2279, 3890, 6644, 11357, 19426, 33246, 56930, 97535, 167177, 286665, 491745, 843842, 1448530, 2487302, 4272238, 7340067, 12614059, 21682694, 37279415, 64108676, 110268453, 189700207, 326408942, 561733093, 966869803]