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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
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
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.)