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Search: id:A144162
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A144162 (0=0, 1=1, 2=2, 3=3, 4=2^2, 5=5, 6=2*3, 7=7, 8=2^3, 9=3^2, 10=2*5, 11=11, 12=2^2*3,..) becomes (0*0*1, 1*2*2, 3*3*4, 2*2*5, 5*6*2, 3*7*7, 8*2*3, 9*3*2, 10*2*5, 11*11*12, 2*2*3, ..). +0
1
0, 4, 36, 20, 60, 147, 48, 54, 100, 1452, 12, 2366, 210, 240, 136, 612, 114, 760, 210, 462, 506, 1104, 225, 260, 702, 252, 28, 25230, 30, 30752, 330, 1122, 1190, 1260, 12, 2738, 1444, 1521, 240, 8405, 252, 12943, 176, 1485, 460, 2162, 4512, 12749, 200, 510 (list; graph; listen)
OFFSET

1,2

EXAMPLE

2*2*3=12=a(11).

13*13*14=2366=a(12).

2*7*15=210=a(13).

3*5*16=240=a(14).

2*4*17=136=a(15).

17*18*2=612=a(16).

3*2*19=114=a(17),

etc.

CROSSREFS

Cf. A136740, A136811, A143716.

Sequence in context: A162990 A092960 A144153 this_sequence A027644 A062182 A073771

Adjacent sequences: A144159 A144160 A144161 this_sequence A144163 A144164 A144165

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 17 2008

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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