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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.

A387416 Numbers k for which A003961(k) - sigma(k) is a multiple of k, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1), and sigma is the sum of divisors function.

Table of values

n a(n)
1 1
2 2
3 18
4 3528

List of values

[1, 2, 18, 3528]

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