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A038394
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Concatenate first n primes in reverse order.
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2
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2, 32, 532, 7532, 117532, 13117532, 1713117532, 191713117532, 23191713117532, 2923191713117532, 312923191713117532, 37312923191713117532, 4137312923191713117532
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| F. Smarandache, Sequences of Numbers Involved in Unsolved Problems, Hexis, Phoenix, 2006.
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LINKS
| M. Bencze and L. Tutescu, editors, Some Notions and Questions in Number Theory, Vol. II.
M. L. Perez et al., eds., Smarandache Notions Journal
M. Fleuren, Smarandache Back Concatenated Primes.
F. Smarandache, Sequences of Numbers Involved in Unsolved Problems.
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MAPLE
| P:=proc(i) local a, n; a:=2; print(a); for n from 2 by 1 to i do a:=a+ithprime(n)*10^floor(evalf((log10(a)+1), 100)); print(a); od; end: P(100); [From Paolo P. Lava (paoloplava(AT)gmail.com), Jan 21 2009]
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CROSSREFS
| Sequence in context: A010045 A052151 A092844 * A068110 A198599 A009517
Adjacent sequences: A038391 A038392 A038393 * A038395 A038396 A038397
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KEYWORD
| nonn,base
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AUTHOR
| M.I.Petrescu (mipetrescu(AT)yahoo.com)
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