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A056549 Sum of round[n/k] for k >= 1 where round[1/2]=1. +0
3
0, 2, 5, 9, 12, 17, 21, 25, 30, 35, 39, 45, 49, 54, 60, 66, 69, 75, 82, 86, 92, 98, 102, 110, 114, 120, 126, 132, 138, 144, 150, 154, 161, 169, 173, 181, 186, 190, 198, 206, 210, 217, 223, 229, 235, 243, 249, 255, 261, 266, 275, 281, 285, 295, 301, 307, 313, 319 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n) =A056548(n)+A001227(n)

CROSSREFS

Cf. A006218, A056548.

Sequence in context: A047385 A086814 A086343 this_sequence A034806 A034307 A070828

Adjacent sequences: A056546 A056547 A056548 this_sequence A056550 A056551 A056552

KEYWORD

easy,nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Jun 21 2000

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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