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.

A228873 a(n) = F(n) * F(n+1) * F(n+2) * F(n+3), the product of four consecutive Fibonacci numbers, A000045.

Table of values

n a(n)
1 6
2 30
3 240
4 1560
5 10920
6 74256
7 510510
8 3495030
9 23965920
10 164237040
11 1125770256
12 7715953440
13 52886430870
14 362487682830
15 2484530961360
16 17029219589256
17 116720030923320
18 800010932051760
19 5483356663145790
20 37583485265670630
21 257601041359736256

List of values

[6, 30, 240, 1560, 10920, 74256, 510510, 3495030, 23965920, 164237040, 1125770256, 7715953440, 52886430870, 362487682830, 2484530961360, 17029219589256, 116720030923320, 800010932051760, 5483356663145790, 37583485265670630, 257601041359736256]

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

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