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.

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A327577 Numbers of zeroless polydivisible numbers with all digits the same in base n.

Original entry on oeis.org

1, 4, 5, 10, 7, 26, 11, 20, 19, 32, 17, 52, 22, 36, 38, 44, 28, 78, 32, 64, 49, 60, 38, 104, 47, 70, 61, 78, 49, 196, 53, 88, 75, 94, 66, 162, 64, 104, 88, 134, 70, 216, 74, 120, 123, 128, 80, 214, 85, 168, 117, 144, 91, 240, 103, 162, 131, 160, 101, 392, 108, 172, 152, 178, 122, 296
Offset: 2

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Author

Seiichi Manyama, Sep 17 2019

Keywords

Examples

			n | zeroless polydivisible numbers with all digits the same in base n
--+------------------------------------------------------------------
2 | [1]
3 | [1, 11], [2, 22]
4 | [1], [2, 22, 222], [3]
So a(2) = 1, a(3) = 4, a(4) = 5.
		

Crossrefs

Formula

a(n) = A327545(n,1).
a(n) = Sum_{k=1..n-1} A327571(n,k).
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