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.

A361275 Number of 1423-avoiding even Grassmannian permutations of size n.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 5
5 11
6 17
7 29
8 41
9 61
10 81
11 111
12 141
13 183
14 225
15 281
16 337
17 409
18 481
19 571
20 661
21 771
22 881
23 1013
24 1145
25 1301
26 1457
27 1639
28 1821
29 2031
30 2241
31 2481
32 2721
33 2993
34 3265
35 3571
36 3877
37 4219
38 4561
39 4941
40 5321
41 5741
42 6161
43 6623
44 7085
45 7591
46 8097
47 8649
48 9201
49 9801
50 10401

List of values

[1, 1, 1, 3, 5, 11, 17, 29, 41, 61, 81, 111, 141, 183, 225, 281, 337, 409, 481, 571, 661, 771, 881, 1013, 1145, 1301, 1457, 1639, 1821, 2031, 2241, 2481, 2721, 2993, 3265, 3571, 3877, 4219, 4561, 4941, 5321, 5741, 6161, 6623, 7085, 7591, 8097, 8649, 9201, 9801, 10401]