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.

A071147 Smallest squarefree number k with exactly n prime factors such that the sum of the prime factors is divisible by the largest prime dividing k, or 0 if no such k exists.

Table of values

n a(n)
0 1
1 2
2 0
3 30
4 3135
5 3570
6 72930
7 1231230
8 14804790
9 497668710
10 14908423530
11 278196808890
12 12192694624110
13 550939666387110
14 21275256232500270
15 1458502323630662310
16 87988283090327810190
17 3254611619240885033130
18 261462818462495728868790
19 9965666894849284108299810
20 557940830126698960967415390
21 90544636506979071680577724410

List of values

[1, 2, 0, 30, 3135, 3570, 72930, 1231230, 14804790, 497668710, 14908423530, 278196808890, 12192694624110, 550939666387110, 21275256232500270, 1458502323630662310, 87988283090327810190, 3254611619240885033130, 261462818462495728868790, 9965666894849284108299810, 557940830126698960967415390, 90544636506979071680577724410]