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 A067456 Floor( sqrt( sum of the decimal digits of n squared)). 0
 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 3, 3, 3, 4, 5, 5, 6, 7, 8, 9, 4, 4, 4, 5, 5, 6, 7, 8, 8, 9, 5, 5, 5, 5, 6, 7, 7, 8, 9, 10, 6, 6, 6, 6, 7, 7, 8, 9, 10, 10, 7, 7, 7, 7, 8, 8, 9, 9, 10, 11, 8, 8, 8, 8, 8, 9, 10, 10, 11, 12, 9, 9, 9, 9, 9, 10, 10, 11 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Terms from Robert G. Wilson v. LINKS Table of n, a(n) for n=0..96. FORMULA a(n) = floor(sqrt(A003132)). MATHEMATICA Table[Floor[Sqrt[Apply[Plus, IntegerDigits[n]^2]]], {n, 1, 100}] (* Robert G. Wilson v *) CROSSREFS Sequence in context: A133048 A214950 A054055 * A052429 A051802 A051801 Adjacent sequences: A067453 A067454 A067455 * A067457 A067458 A067459 KEYWORD base,easy,nonn AUTHOR Amarnath Murthy, Feb 05 2002 STATUS approved

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Last modified June 9 17:44 EDT 2023. Contains 363183 sequences. (Running on oeis4.)