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 A262712 Numbers n such that sum of digits on n^2 is 9. 1
 3, 6, 9, 12, 15, 18, 21, 30, 39, 45, 48, 51, 60, 90, 102, 105, 111, 120, 150, 180, 201, 210, 249, 300, 318, 321, 348, 351, 390, 450, 480, 501, 510, 549, 600, 900, 1002, 1005, 1011, 1020, 1050, 1101, 1110, 1149, 1200, 1500, 1761, 1800, 2001, 2010, 2100, 2490 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Subsequence of A008585. LINKS EXAMPLE 6 is in sequence because 6^2 = 36 and 3+6 = 9. MATHEMATICA Select[Range[10^5], Total[IntegerDigits[#^2]] == 9 &] PROG (MAGMA) [n: n in [1..2*10^4] | &+Intseq(n^2) eq 9 ]; (PARI) for(n=1, 1e8, if (sumdigits(n^2) == 9, print1(n", "))) \\ Altug Alkan, Sep 28 2015 CROSSREFS Cf. similar sequences listed in A262711. Cf. A004159, A008585, A061910. Sequence in context: A127451 A022844 A260702 * A195934 A195933 A110117 Adjacent sequences:  A262709 A262710 A262711 * A262713 A262714 A262715 KEYWORD nonn,base AUTHOR Vincenzo Librandi, Sep 28 2015 STATUS approved

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Last modified May 11 03:49 EDT 2021. Contains 343784 sequences. (Running on oeis4.)