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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.

A200539 Product of Fibonacci and Motzkin numbers: a(n) = A000045(n+1)*A001006(n).

Table of values

n a(n)
0 1
1 1
2 4
3 12
4 45
5 168
6 663
7 2667
8 10982
9 45925
10 194732
11 834912
12 3614063
13 15771795
14 69316740
15 306534564
16 1362986799
17 6089916936
18 27328613142
19 123118156260
20 556626199974
21 2524659817449
22 11484671681511
23 52384730922720
24 239534402969925
25 1097805759803893
26 5042014405418968

List of values

[1, 1, 4, 12, 45, 168, 663, 2667, 10982, 45925, 194732, 834912, 3614063, 15771795, 69316740, 306534564, 1362986799, 6089916936, 27328613142, 123118156260, 556626199974, 2524659817449, 11484671681511, 52384730922720, 239534402969925, 1097805759803893, 5042014405418968]

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

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