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.

A180002 Place a(n) red and b(n) blue balls in an urn; draw 5 balls without replacement; Probability(5 red balls) = Probability(3 red and 2 blue balls).

Table of values

n a(n)
1 4
2 8
3 24
4 43
5 179
6 783
7 1504
8 6668
9 29604
10 56983
11 253079
12 1124043
13 2163724
14 9610208
15 42683904
16 82164403
17 364934699
18 1620864183
19 3120083464
20 13857908228
21 61550154924
22 118481007103
23 526235577839
24 2337285022803
25 4499158186324
26 19983094049528

List of values

[4, 8, 24, 43, 179, 783, 1504, 6668, 29604, 56983, 253079, 1124043, 2163724, 9610208, 42683904, 82164403, 364934699, 1620864183, 3120083464, 13857908228, 61550154924, 118481007103, 526235577839, 2337285022803, 4499158186324, 19983094049528]

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

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