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.

A094949 Phi(m)*sigma(m), where m is the product of exactly two primes that differ by 2, where phi=A000010, sigma=A000203.

Table of values

n a(n)
1 192
2 1152
3 20160
4 103680
5 806400
6 3104640
7 12945600
8 26853120
9 108201600
10 136002240
11 362597760
12 506160000
13 1049630400
14 1358807040
15 1536796800
16 2702128320
17 3317529600
18 5314118400
19 6323748480
20 9475464960
21 14665694400

List of values

[192, 1152, 20160, 103680, 806400, 3104640, 12945600, 26853120, 108201600, 136002240, 362597760, 506160000, 1049630400, 1358807040, 1536796800, 2702128320, 3317529600, 5314118400, 6323748480, 9475464960, 14665694400]

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

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