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 A235177 a(n) is a refactorable number and the sum of all refactorable numbers <= a(n) is also a refactorable number. 2
 1, 448, 1384, 1520, 2216, 2240, 2264, 2316, 2432, 2488, 2536, 2560, 3280, 3324, 3384, 3420, 3464, 3600, 3712, 3736, 3924, 12392, 12560, 12576, 12664, 12720, 12756, 12780, 12828, 12992, 13044, 13116, 17360, 17432, 18072, 18108, 18336, 18368, 18636, 18664 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Giovanni Resta, Table of n, a(n) for n = 1..1000 EXAMPLE The sum of the terms of A033950 <= 448 equals 9120, which is A033950(616). CROSSREFS Cf. A033950, A235176. Sequence in context: A062040 A093786 A251646 * A194648 A234438 A048632 Adjacent sequences:  A235174 A235175 A235176 * A235178 A235179 A235180 KEYWORD nonn AUTHOR Ivan N. Ianakiev, Jan 04 2014 EXTENSIONS a(8)-a(40) from Giovanni Resta, Jan 04 2014 STATUS approved

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Last modified January 26 20:11 EST 2020. Contains 331288 sequences. (Running on oeis4.)