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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.

A349458 Number of smooth positroids in the Grassmannian variety Gr(k,n) for a fixed n and any 0 <= k <= n.

Table of values

n a(n)
0 1
1 2
2 5
3 16
4 61
5 256
6 1132
7 5174
8 24229
9 115654
10 560741
11 2754082
12 13674212
13 68522208
14 346100952
15 1760213254
16 9006390373
17 46329244034
18 239455376071
19 1242923653316
20 6476376834789
21 33863408028888
22 177625109853808
23 934404580376016

List of values

[1, 2, 5, 16, 61, 256, 1132, 5174, 24229, 115654, 560741, 2754082, 13674212, 68522208, 346100952, 1760213254, 9006390373, 46329244034, 239455376071, 1242923653316, 6476376834789, 33863408028888, 177625109853808, 934404580376016]

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

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