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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.

A095134 Sum of the product of the first ceiling(n/2) odd-indexed primes and the product of the first floor(n/2) even-indexed primes; a(1) = 2.

Table of values

n a(n)
1 2
2 5
3 13
4 31
5 131
6 383
7 2143
8 7057
9 48197
10 193433
11 1483733
12 6898961
13 60231361
14 293988703
15 2808611363
16 15253406999
17 164272132459
18 925319250199
19 10930128162979
20 65091314708809
21 796351893424729
22 5081275480436251

List of values

[2, 5, 13, 31, 131, 383, 2143, 7057, 48197, 193433, 1483733, 6898961, 60231361, 293988703, 2808611363, 15253406999, 164272132459, 925319250199, 10930128162979, 65091314708809, 796351893424729, 5081275480436251]

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

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