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One day, one decomposition
A247678: Odd composite numbers congruent to 4 modulo 9

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A247678.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A247678.html

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Decomposition into weight × level + jump of A247678 in 3D - three.js webGL - Rémi Eismann

Decomposition into weight × level + jump of A247678 in 3D. Made with three.js webGL. Rémi Eismann