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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.

A204450 2*A203579 - A204449. Difference between the exponential convolution of A000032 (Lucas) with itself and the corresponding exponential half-convolution.

Table of values

n a(n)
0 0
1 2
2 6
3 17
4 30
5 177
6 417
7 1857
8 4302
9 19457
10 47731
11 203777
12 509769
13 2134017
14 5462701
15 22347777
16 58104062
17 234029057
18 616919457
19 2450784257
20 6533317815
21 25664946177
22 69085604341
23 268766806017
24 729558799305
25 2814562533377

List of values

[0, 2, 6, 17, 30, 177, 417, 1857, 4302, 19457, 47731, 203777, 509769, 2134017, 5462701, 22347777, 58104062, 234029057, 616919457, 2450784257, 6533317815, 25664946177, 69085604341, 268766806017, 729558799305, 2814562533377]

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

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