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.

A025164 a(n) = a(n-2) + (2n-1)a(n-1); a(0)=1, a(1)=1.

Table of values

n a(n)
0 1
1 1
2 4
3 21
4 151
5 1380
6 15331
7 200683
8 3025576
9 51635475
10 984099601
11 20717727096
12 477491822809
13 11958013297321
14 323343850850476
15 9388929687961125
16 291380164177645351
17 9624934347550257708
18 337164082328436665131
19 12484695980499706867555
20 487240307321817004499776

List of values

[1, 1, 4, 21, 151, 1380, 15331, 200683, 3025576, 51635475, 984099601, 20717727096, 477491822809, 11958013297321, 323343850850476, 9388929687961125, 291380164177645351, 9624934347550257708, 337164082328436665131, 12484695980499706867555, 487240307321817004499776]

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

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