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 A178358 Rounded up arithmetic mean of digits of n prepended to n, cf. A004427. 5
 0, 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 111, 212, 213, 314, 315, 416, 417, 518, 519, 120, 221, 222, 323, 324, 425, 426, 527, 528, 629, 230, 231, 332, 333, 434, 435, 536, 537, 638, 639, 240, 341, 342, 443, 444, 545, 546, 647, 648, 749, 350, 351, 452, 453 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS A000030(a(n)) = A004427(a(n)) = A004427(n); a(A178359(n)) = A178359(a(n)); subsequence of A178403. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 FORMULA a(n) = A004427(n)*A011557(A055642(n)) + n. EXAMPLE n=8379 --> A004427(n) = ceiling((8+3+7+9)/4) = 7 --> a(8379) = 7*10^4 + 8379 = 78379. MATHEMATICA Table[Ceiling[Mean[IntegerDigits[n]]]*10^IntegerLength[n]+n, {n, 0, 100}] (* Harvey P. Dale, Apr 21 2019 *) PROG (Haskell) a178358 n = read \$ show (a004427 n) ++ show n :: Integer -- Reinhard Zumkeller, Mar 17 2014 CROSSREFS Sequence in context: A282151 A333614 A109052 * A044896 A048841 A059632 Adjacent sequences: A178355 A178356 A178357 * A178359 A178360 A178361 KEYWORD base,nonn,look AUTHOR Reinhard Zumkeller, May 27 2010 STATUS approved

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Last modified September 13 20:16 EDT 2024. Contains 375910 sequences. (Running on oeis4.)