0,1
Digital root of any number in this sequence = 8. Any partial sum of digits of any number in this sequence also belongs to this sequence. - Artur Jasinski (grafix(AT)csl.pl), Dec 16 2007
Tanya Khovanova, Recursive Sequences
INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 970
Adjacent sequences: A017254 A017255 A017256 this_sequence A017258 A017259 A017260
Sequence in context: A042211 A043485 A031495 this_sequence A052222 A044441 A056121
nonn,easy
njas
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