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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.

A247293 Number of weighted lattice paths B(n) having no uHd strings.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 8
5 16
6 35
7 77
8 172
9 391
10 899
11 2085
12 4877
13 11490
14 27236
15 64916
16 155483
17 374027
18 903286
19 2189219
20 5322965
21 12980660
22 31740404
23 77804885
24 191160040
25 470662449
26 1161123461
27 2869754099
28 7104856781
29 17618234456
30 43754467510
31 108816781175

List of values

[1, 1, 2, 4, 8, 16, 35, 77, 172, 391, 899, 2085, 4877, 11490, 27236, 64916, 155483, 374027, 903286, 2189219, 5322965, 12980660, 31740404, 77804885, 191160040, 470662449, 1161123461, 2869754099, 7104856781, 17618234456, 43754467510, 108816781175]

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

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