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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.

A333378 a(n) = F(n) * (-1)^(n*(n-1)/2) where F(n) = A000045(n) Fibonacci numbers.

Table of values

n a(n)
0 0
1 1
2 -1
3 -2
4 3
5 5
6 -8
7 -13
8 21
9 34
10 -55
11 -89
12 144
13 233
14 -377
15 -610
16 987
17 1597
18 -2584
19 -4181
20 6765
21 10946
22 -17711
23 -28657
24 46368
25 75025
26 -121393
27 -196418
28 317811
29 514229
30 -832040
31 -1346269
32 2178309
33 3524578
34 -5702887
35 -9227465
36 14930352
37 24157817
38 -39088169

List of values

[0, 1, -1, -2, 3, 5, -8, -13, 21, 34, -55, -89, 144, 233, -377, -610, 987, 1597, -2584, -4181, 6765, 10946, -17711, -28657, 46368, 75025, -121393, -196418, 317811, 514229, -832040, -1346269, 2178309, 3524578, -5702887, -9227465, 14930352, 24157817, -39088169]

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

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