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.

A382280 Area of the Pythagoras Tree.

Original entry on oeis.org

1, 4, 6, 1, 3, 3, 6, 9, 4, 7, 8, 7, 0, 6, 7, 0, 3, 4, 8, 6, 8, 6, 5, 6, 9, 5, 1, 4, 0, 4, 5, 4, 2, 2, 5, 5, 7, 0, 6, 1, 5, 9, 3, 8, 4, 3, 6, 6, 9, 7, 0, 0, 1, 0, 3, 9, 2, 7, 1, 7, 0, 6, 8, 7, 4, 6, 2, 9, 5, 9, 3, 2, 6, 5, 2, 3, 4, 7, 7, 1, 1, 7, 4, 8, 4, 4, 5
Offset: 2

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Comments

Toby Cathcart Burn computes this area and proves that it is rational, see Burn's link.
Periodic with least period 24991809055165165344114049684963169385417186421266758748239197727845219724417438120079735462625442123052.

Examples

			14.613369478706703486865695140454225570615938436697001039271706874629593265234771....
		

Crossrefs

Related to A276647 and A276677, though growth termination may make their areas differ.

Programs

  • PARI
    12823413011547414368862997525616691741041579688920794331363953564934456759066858494476606822552437442098640979/877512406035620068631903180662851572553488753575243048137500508983979170248733422547196905684808937723408093. \\ Charles R Greathouse IV, Mar 20 2025