login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A057747 Number of decompositions of 2n-1 into sum of a lucky number and an even-lucky-number (from A045954). 0
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

0,3

LINKS

Table of n, a(n) for n=0..83.

EXAMPLE

1 is not the sum of Lucky number and 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: A275840 A178065 A057748 * A281965 A228074 A152803

Adjacent sequences:  A057744 A057745 A057746 * A057748 A057749 A057750

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto, Oct 30 2000

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 21 03:01 EST 2018. Contains 317427 sequences. (Running on oeis4.)