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 A104022 Numbers that have more than one way of being written as k^2*j, 0 < j <= k. 4
 64, 100, 144, 196, 256, 324, 400, 484, 512, 576, 648, 676, 729, 784, 800, 900, 968, 1024, 1089, 1152, 1156, 1296, 1352, 1444, 1521, 1568, 1600, 1728, 1764, 1800, 1936, 2025, 2028, 2048, 2116, 2304, 2312, 2352, 2500, 2592, 2601, 2700, 2704, 2888, 2916 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..45. MATHEMATICA t = Sort[ Flatten[ Table[k^2*j, {k, 55}, {j, k}]]]; u = Table[ Count[t, n], {n, 3000}]; Select[ Range[3000], u[[ # ]] > 1 &] CROSSREFS Cf. A104023, A102354, A104020, A104024. Sequence in context: A175163 A111730 A255990 * A061099 A118488 A088033 Adjacent sequences: A104019 A104020 A104021 * A104023 A104024 A104025 KEYWORD nonn AUTHOR Leroy Quet and Robert G. Wilson v, Feb 23 2005 STATUS approved

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Last modified May 30 00:36 EDT 2024. Contains 372954 sequences. (Running on oeis4.)