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Rémi Eismann

One day, one decomposition
A179188: Numbers n such that phi(n) = phi(n+6), with Euler's totient function phi=A000010

3D graph, threejs - webGL ➡️ decompwlj.com/3Dgraph/A179188.
2D graph, first 500 terms ➡️ decompwlj.com/2Dgraph500terms/