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 A175585 Numbers n with property that sums of neighbor digits of n^2 are all less than 10. 1
 0, 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 21, 25, 30, 32, 35, 38, 39, 40, 45, 46, 47, 48, 49, 50, 51, 52, 55, 56, 60, 65, 71, 79, 85, 90, 95, 100, 101, 102, 103, 104, 105, 106, 110, 111, 112, 115, 119, 120, 131, 145, 146, 147, 149, 150, 152, 153, 155, 156, 162 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..63. EXAMPLE Sum of neighbor digits, 6 and 9, of 13^2 = 169 is 15, hence 13 is absent in the sequence. MATHEMATICA s={0, 1, 4, 9}; Do[id=IntegerDigits[n^2]; rp=Rest[id]+Most[id]; If[Max[rp]<10, AppendTo[s, n]], {n, 4, 300}]; s CROSSREFS Cf. A175584 Sums of neighbor digits of prime p are all less than 10. Sequence in context: A236562 A157189 A136250 * A178905 A349955 A168009 Adjacent sequences: A175582 A175583 A175584 * A175586 A175587 A175588 KEYWORD base,nonn AUTHOR Zak Seidov, Jul 16 2010 STATUS approved

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Last modified June 8 18:04 EDT 2023. Contains 363165 sequences. (Running on oeis4.)