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 A057747 Number of decompositions of 2n-1 into sum of a lucky number and an even-lucky-number (from A045954). 1
 0, 1, 2, 2, 2, 3, 4, 3, 3, 5, 4, 4, 5, 6, 4, 4, 5, 7, 6, 5, 5, 8, 6, 6, 6, 8, 8, 9, 8, 8, 7, 6, 7, 8, 9, 9, 9, 9, 10, 10, 7, 10, 13, 8, 9, 11, 10, 8, 9, 10, 12, 10, 12, 9, 12, 11, 10, 12, 14, 12, 15, 12, 10, 12, 10, 13, 16, 11, 13, 16, 14, 11, 15, 15, 13, 17, 15, 12, 13, 10, 12, 18, 14, 11 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Jinyuan Wang, Table of n, a(n) for n = 1..1000 EXAMPLE 1 is not the sum of a lucky number and an even-lucky-number, so a(1)=0; 3=1+2 (one way, so a(2)=1); 5=3+2=1+4 (so a(3)=2); etc. CROSSREFS Cf. A000959, A045954. Sequence in context: A366636 A366655 A057748 * A281965 A228074 A152803 Adjacent sequences: A057744 A057745 A057746 * A057748 A057749 A057750 KEYWORD nonn,easy AUTHOR Naohiro Nomoto, Oct 30 2000 EXTENSIONS Offset changed to 1 by Jinyuan Wang, Apr 07 2020 STATUS approved

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Last modified December 8 03:15 EST 2023. Contains 367662 sequences. (Running on oeis4.)