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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.

A300158 Absolute value of product of nonzero eigenvalues of upper left (n+1)X(n+1) rank 2 submatrix of Wythoff array.

Table of values

n a(n)
1 1
2 1
3 4
4 8
5 20
6 38
7 77
8 143
9 267
10 474
11 856
12 1540
13 2703
14 4749
15 8204
16 14233
17 24714
18 42234
19 72495
20 122930
21 209534
22 357733
23 603816
24 1023096
25 1735667
26 2915260
27 4913350
28 8216036
29 13794118
30 23198608
31 38710749
32 64802028
33 108623872
34 180780234
35 301734372
36 500717764
37 833682438
38 1390233453
39 2304627170

List of values

[1, 1, 4, 8, 20, 38, 77, 143, 267, 474, 856, 1540, 2703, 4749, 8204, 14233, 24714, 42234, 72495, 122930, 209534, 357733, 603816, 1023096, 1735667, 2915260, 4913350, 8216036, 13794118, 23198608, 38710749, 64802028, 108623872, 180780234, 301734372, 500717764, 833682438, 1390233453, 2304627170]

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

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