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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.

A387208 Expansion of sqrt((1-x) / (1-9*x)^3).

Table of values

n a(n)
0 1
1 13
2 145
3 1517
4 15329
5 151565
6 1476465
7 14228205
8 135990465
9 1291409165
10 12199991633
11 114761111789
12 1075651464865
13 10051341904141
14 93677905064497
15 871083359663085
16 8083754402585985
17 74885500462111245
18 692624008942816785
19 6397104350057979885
20 59008673876627412321

List of values

[1, 13, 145, 1517, 15329, 151565, 1476465, 14228205, 135990465, 1291409165, 12199991633, 114761111789, 1075651464865, 10051341904141, 93677905064497, 871083359663085, 8083754402585985, 74885500462111245, 692624008942816785, 6397104350057979885, 59008673876627412321]

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

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