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 A213708 a(n) is the least inverse of A071542, i.e., minimal i such that A071542(i) = n. 11
 0, 1, 2, 4, 6, 8, 10, 12, 16, 18, 20, 24, 28, 32, 34, 36, 40, 44, 48, 52, 56, 60, 64, 66, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 126, 128, 130, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 190, 192, 196, 200, 204, 208, 212, 216, 222, 226, 232, 238, 244, 250, 256, 258, 260, 264, 268, 272, 276 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Also the positions in A071542 where new records appear, record values appearing in the ascending order, i.e., as A001477 (because A071542 is a monotone and surjective function). LINKS Antti Karttunen, Table of n, a(n) for n = 0..16500 MATHEMATICA Function[s, Map[FirstPosition[s, #] &, Union@ s]]@ Table[-1 + Length@ NestWhileList[# - DigitCount[#, 2, 1] &, n, # > 0 &], {n, 276}] // Flatten (* Michael De Vlieger, Jul 16 2017 *) PROG (Scheme with Antti Karttunen's intseq-additions): (define A213708 (RECORD-POS 0 0 A071542)) CROSSREFS Cf. A173601 for the greatest inverse. A086876 gives the first differences. Cf. A179016, A213730. Sequence in context: A085150 A051178 A093891 * A239063 A151999 A267817 Adjacent sequences:  A213705 A213706 A213707 * A213709 A213710 A213711 KEYWORD nonn AUTHOR Antti Karttunen, Oct 24 2012 STATUS approved

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Last modified May 30 08:43 EDT 2020. Contains 334712 sequences. (Running on oeis4.)