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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.

A005248 Bisection of Lucas numbers: a(n) = L(2*n) = A000032(2*n).

Table of values

n a(n)
0 2
1 3
2 7
3 18
4 47
5 123
6 322
7 843
8 2207
9 5778
10 15127
11 39603
12 103682
13 271443
14 710647
15 1860498
16 4870847
17 12752043
18 33385282
19 87403803
20 228826127
21 599074578
22 1568397607
23 4106118243
24 10749957122
25 28143753123
26 73681302247
27 192900153618
28 505019158607
29 1322157322203

List of values

[2, 3, 7, 18, 47, 123, 322, 843, 2207, 5778, 15127, 39603, 103682, 271443, 710647, 1860498, 4870847, 12752043, 33385282, 87403803, 228826127, 599074578, 1568397607, 4106118243, 10749957122, 28143753123, 73681302247, 192900153618, 505019158607, 1322157322203]

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

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