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 A131495 Values of n such that n^n starts with the digits of n. 2
 1, 10, 19, 100, 278, 1000, 10000, 100000, 486935, 1000000, 4747520, 10000000, 100000000, 112033551, 181695081, 499895124, 979848425, 1000000000, 10000000000, 19412627434, 100000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS All integers of the form 10^k are in the sequence. - Farideh Firoozbakht, Nov 06 2007 LINKS EXAMPLE 278 is a term of the sequence because 278^278 = 278.261... * 10^677, which starts with 278. 19412627434^19412627434 = 19412627434.11420738589... * 10^199718747897. - Berend Jan van der Zwaag (b.j.vanderzwaag(AT)utwente.nl), Aug 12 2009 PROG (PARI) s=1; for(i=1, 1500, s=i^i; while(s-i>11, s=s/10); if(floor(s)==i, printp1(i, ", "), )) CROSSREFS Sequence in context: A181898 A219688 A166706 * A060630 A070199 A015445 Adjacent sequences:  A131492 A131493 A131494 * A131496 A131497 A131498 KEYWORD more,nonn,base AUTHOR Randy L. Ekl, Aug 12 2007 EXTENSIONS One more term from Farideh Firoozbakht, Nov 06 2007 More terms from Berend Jan van der Zwaag (b.j.vanderzwaag(AT)utwente.nl), Aug 12 2009 STATUS approved

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Last modified April 16 04:49 EDT 2021. Contains 343030 sequences. (Running on oeis4.)