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.

A382640 a(n) = 90*binomial(n,6) + 90*binomial(n,5) + 54*binomial(n,4) + 24*binomial(n,3) + 9*binomial(n,2) + 3*n + 1.

Table of values

n a(n)
0 1
1 4
2 16
3 61
4 217
5 706
6 2074
7 5461
8 12961
9 28072
10 56236
11 105469
12 187081
13 316486
14 514102
15 806341
16 1226689
17 1816876
18 2628136
19 3722557
20 5174521
21 7072234
22 9519346
23 12636661
24 16563937
25 21461776
26 27513604
27 34927741
28 43939561
29 54813742
30 67846606
31 83368549
32 101746561

List of values

[1, 4, 16, 61, 217, 706, 2074, 5461, 12961, 28072, 56236, 105469, 187081, 316486, 514102, 806341, 1226689, 1816876, 2628136, 3722557, 5174521, 7072234, 9519346, 12636661, 16563937, 21461776, 27513604, 34927741, 43939561, 54813742, 67846606, 83368549, 101746561]