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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.

A238698 Quotients connected with the Banach matchboxes problem: Sum_{i=1..prime(n)-9} 2^(i-1)*binomial(i+3,4)/prime(n) (case 4).

Table of values

n a(n)
5 1
6 27
7 3599
8 29157
9 1362009
10 271400395
11 1469088801
12 201573262419
13 4910195172327
14 23758960017789
15 538608637491505
16 54480012827209187
17 5189654331623024397
18 23446625614115858667
19 2104894813684998321045
20 41392675008326544152201
21 182632116049323564469767

List of values

[1, 27, 3599, 29157, 1362009, 271400395, 1469088801, 201573262419, 4910195172327, 23758960017789, 538608637491505, 54480012827209187, 5189654331623024397, 23446625614115858667, 2104894813684998321045, 41392675008326544152201, 182632116049323564469767]

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

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