A061681: a(0)=1; a(n) = a(n-1) + lead(a(n-1)) for n > 0 where for an integer x lead(x) is the leading digit in base 10
3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A061681.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A061681.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A061681.html
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