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A100817
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Product of the digits of n, each doubled.
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0
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0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 0, 12, 24, 36, 48, 60, 72, 84, 96, 108, 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 0, 20, 40, 60, 80, 100, 120, 140, 160, 180, 0, 24, 48, 72, 96, 120, 144, 168
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| 10: (1+1)*(0+0)=0
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MATHEMATICA
| Times@@(2*IntegerDigits[#])&/@Range[0, 70] (* From Harvey P. Dale, Jan 16 2012 *)
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PROG
| (PERL) #!/usr/local/bin/perl -w for $i (1..100){ @j = split "", $i; $prod=1; for (@j){ $prod *= $_ + $_; } print "$prod, "; }
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CROSSREFS
| Sequence in context: A055958 A069816 A088116 * A074157 A076309 A088133
Adjacent sequences: A100814 A100815 A100816 * A100818 A100819 A100820
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KEYWORD
| nonn,base
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AUTHOR
| gamo (gamo(AT)telecable.es), Jan 05 2005
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