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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.

A049663 a(n) = (F(6*n+5) - 1)/4, where F = A000045 (the Fibonacci sequence).

Table of values

n a(n)
0 1
1 22
2 399
3 7164
4 128557
5 2306866
6 41395035
7 742803768
8 13329072793
9 239180506510
10 4291920044391
11 77015380292532
12 1381984925221189
13 24798713273688874
14 444994854001178547
15 7985108658747524976
16 143286961003454271025
17 2571180189403429353478

List of values

[1, 22, 399, 7164, 128557, 2306866, 41395035, 742803768, 13329072793, 239180506510, 4291920044391, 77015380292532, 1381984925221189, 24798713273688874, 444994854001178547, 7985108658747524976, 143286961003454271025, 2571180189403429353478]

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

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