The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A271534 Numbers n with digits abc..xyz such that n = (a + b + c + ... + x + y + z) + (a^b + b^c + c^d + ... + x^y + y^z). 0
 1, 2, 3, 4, 5, 6, 7, 8, 9, 33, 92, 1683552 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(12) is the last term. The sequence is finite because it can't contain numbers with more than 10 digits. Both conventions for indeterminate form 0^0, i.e., 0^0=0 and 0^0=1, lead to the same values. - Giovanni Resta, Apr 12 2016 LINKS EXAMPLE 33 is a term because 33 = 3 + 3 + 3^3. 1683552 is a term because 1683552 = (1 + 6 + 8 + 3 + 5 + 5 + 2) + (1^6 + 6^8 + 8^3 + 3^5 + 5^5 + 5^2). MATHEMATICA Unprotect[Power]; Power[0, 0]=1; okQ[n_]:=Block[{d = IntegerDigits[n]}, n == Plus @@ d + Plus @@ Power @@@ Partition[d, 2, 1]]; Select[Range[2*10^6], okQ] (* Giovanni Resta, Apr 12 2016 *) CROSSREFS Cf. A005188. Sequence in context: A295638 A357195 A173551 * A072482 A254958 A302502 Adjacent sequences: A271531 A271532 A271533 * A271535 A271536 A271537 KEYWORD nonn,base,fini,full AUTHOR José de Jesús Camacho Medina, Apr 09 2016 EXTENSIONS a(12) from Giovanni Resta, Apr 12 2016 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 5 06:35 EST 2022. Contains 358582 sequences. (Running on oeis4.)