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 _    _      ___      _____      ___      _  __  
| \  / ||   / _ \\   |__  //    / _ \\   | |/ // 
|  \/  ||  | / \ ||    / //    | / \ ||  | ' //  
| .  . ||  | \_/ ||   / //__   | \_/ ||  | . \\  
|_|\/|_||   \___//   /_____||   \___//   |_|\_\\ 
`-`  `-`    `---`    `-----`    `---`    `-` --`

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Text this: The sigma chromatic number of the Sierpinski gasket graphs and the Hanoi graphs