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.

A380989 Position of first appearance of n in A380958 (number of prime factors minus sum of distinct prime exponents).

Table of values

n a(n)
0 1
1 6
2 30
3 210
4 900
5 7776
6 27000
7 279936
8 810000
9 9261000
10 24300000
11 362797056
12 729000000
13 13060694016
14 21870000000
15 408410100000
16 656100000000
17 16926659444736
18 19683000000000
19 609359740010496
20 590490000000000
21 18010885410000000
22 17714700000000000

List of values

[1, 6, 30, 210, 900, 7776, 27000, 279936, 810000, 9261000, 24300000, 362797056, 729000000, 13060694016, 21870000000, 408410100000, 656100000000, 16926659444736, 19683000000000, 609359740010496, 590490000000000, 18010885410000000, 17714700000000000]

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

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