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A067079 If n = abcd... in decimal notation then the right digitorial function Rd(n) = abcd...*bcd...*cd...*d...*... 7
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 11, 24, 39, 56, 75, 96, 119, 144, 171, 0, 21, 44, 69, 96, 125, 156, 189, 224, 261, 0, 31, 64, 99, 136, 175, 216, 259, 304, 351, 0, 41, 84, 129, 176, 225, 276, 329, 384, 441, 0, 51, 104, 159, 216, 275, 336, 399, 464, 531, 0, 61, 124, 189 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

FORMULA

Rd(abcd) = abcd*bcd*cd*d, etc.

Product_{k=1..length(n)} (n-10^k*floor(n/10^k)). - Vladeta Jovovic, Jan 08 2002

EXAMPLE

Rd(256) = 256*56*6 = 86016.

MATHEMATICA

Table[d = IntegerDigits[n]; rd = 1; While[ Length[d] > 0, rd = rd*FromDigits[d]; d = Drop[d, 1]]; rd, {n, 1, 75} ]

Join[{0}, Table[Times@@FromDigits/@NestList[Rest[#]&, IntegerDigits[n], IntegerLength[ n]-1], {n, 70}]] (* Harvey P. Dale, Nov 29 2014 *)

PROG

(Haskell)

import Data.List (tails)

a067079 = product . map read . init . tails . show :: Integer -> Integer

-- Reinhard Zumkeller, Apr 23 2013

CROSSREFS

Cf. A067080.

Sequence in context: A265525 A056967 A321243 * A080434 A062567 A069554

Adjacent sequences:  A067076 A067077 A067078 * A067080 A067081 A067082

KEYWORD

base,nonn,nice,look

AUTHOR

Amarnath Murthy, Jan 05 2002

EXTENSIONS

More terms from Robert G. Wilson v, Jan 07 2002

STATUS

approved

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Last modified February 17 10:59 EST 2019. Contains 320219 sequences. (Running on oeis4.)