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A057748 Number of decompositions of 2n-1 into sum of a twin lucky number and a twin even-lucky-number(from A045955, A045956). +0
1
0, 1, 2, 2, 2, 3, 4, 3, 3, 5, 4, 3, 4, 3, 2, 2, 3, 5, 5, 2, 2, 5, 4, 2, 4, 7, 7, 6, 5, 4, 4, 3, 3, 5, 6, 6, 5, 5, 6, 5, 4, 6, 8, 5, 2, 3, 4, 3, 1, 3, 7, 7, 4, 3, 5, 5, 3, 4, 7, 7, 5, 4, 4, 4, 5, 7, 7, 5, 6, 8, 6, 5, 8, 9, 8, 8, 6, 4, 3, 1, 3, 7, 6, 5, 7, 9, 8, 6, 6, 8, 10, 8, 6, 7, 7, 5, 2, 2, 7, 9, 6, 8, 11, 6 (list; graph; listen)
OFFSET

0,3

COMMENT

Conjecture: this sequence is always positive (with n>1).

EXAMPLE

1 is not the sum of Twin lucky number and Twin 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, A057701, A045954, A045955, A045956.

Sequence in context: A151714 A039644 A163107 this_sequence A057747 A152803 A016729

Adjacent sequences: A057745 A057746 A057747 this_sequence A057749 A057750 A057751

KEYWORD

easy,fini,nonn

AUTHOR

Naohiro Nomoto (6284968128(AT)geocities.co.jp), Oct 30 2000

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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