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.

A108555 Antidiagonal sums of square array A108553, in which row n equals the crystal ball sequence for D_n lattice.

Table of values

n a(n)
0 1
1 2
2 5
3 12
4 35
5 116
6 411
7 1482
8 5333
9 19030
10 67265
11 235704
12 819863
13 2834600
14 9752951
15 33428054
16 114228713
17 389419114
18 1325155261
19 4503031332
20 15285291851
21 51842203804
22 175719341971
23 595316455842
24 2016131645245
25 6826076021310

List of values

[1, 2, 5, 12, 35, 116, 411, 1482, 5333, 19030, 67265, 235704, 819863, 2834600, 9752951, 33428054, 114228713, 389419114, 1325155261, 4503031332, 15285291851, 51842203804, 175719341971, 595316455842, 2016131645245, 6826076021310]

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

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