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.

A262594 Expansion of (1-2*x)^2/((1-x)^4*(1-4*x)).

Table of values

n a(n)
0 1
1 4
2 14
3 52
4 203
5 808
6 3232
7 12936
8 51765
9 207100
10 828466
11 3313964
12 13255999
13 53024192
14 212097028
15 848388448
16 3393554217
17 13574217396
18 54296870230
19 217187481700
20 868749927731
21 3474999712024
22 13899998849384
23 55599995399032
24 222399981597853
25 889599926393388
26 3558399705575802
27 14233598822305756

List of values

[1, 4, 14, 52, 203, 808, 3232, 12936, 51765, 207100, 828466, 3313964, 13255999, 53024192, 212097028, 848388448, 3393554217, 13574217396, 54296870230, 217187481700, 868749927731, 3474999712024, 13899998849384, 55599995399032, 222399981597853, 889599926393388, 3558399705575802, 14233598822305756]