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.

A294402 E.g.f.: exp(-Sum_{n>=1} d(n) * x^n), where d(n) is the number of divisors of n.

Table of values

n a(n)
0 1
1 -1
2 -3
3 -1
4 1
5 279
6 301
7 12263
8 5601
9 -431281
10 -2140739
11 -77720721
12 -1755429983
13 -12569445721
14 85768062381
15 -4458503862121
16 43351731658561
17 546719071653663
18 31735514726673661
19 291860504886837599
20 5860390638855992001
21 208620917963122666679

List of values

[1, -1, -3, -1, 1, 279, 301, 12263, 5601, -431281, -2140739, -77720721, -1755429983, -12569445721, 85768062381, -4458503862121, 43351731658561, 546719071653663, 31735514726673661, 291860504886837599, 5860390638855992001, 208620917963122666679]