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.

A275764 E.g.f. satisfies: A(x) = exp(2*x) * A(-x).

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 16
5 56
6 426
7 2262
8 26944
9 191536
10 3126160
11 27728240
12 575175624
13 6103078632
14 153600146896
15 1895624842048
16 56097022625536
17 789039958221824
18 26841919568551488
19 423728844983247552
20 16289858574401789440
21 285136754661527448832
22 12223695878727911987200
23 234939121837394575935488
24 11111439664638562836316800
25 232614372016075736439705216
26 12030859273551523180503859456
27 272479395898122444403210189312

List of values

[1, 1, 2, 4, 16, 56, 426, 2262, 26944, 191536, 3126160, 27728240, 575175624, 6103078632, 153600146896, 1895624842048, 56097022625536, 789039958221824, 26841919568551488, 423728844983247552, 16289858574401789440, 285136754661527448832, 12223695878727911987200, 234939121837394575935488, 11111439664638562836316800, 232614372016075736439705216, 12030859273551523180503859456, 272479395898122444403210189312]

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

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