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A110726
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Absolute{n concatenate R(n)}-{ R(n) concatenate n}, R(n) = digit reversal of n.
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1
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891, 0, 891, 1782, 2673, 3564, 4455, 5346, 6237, 7128, 1782, 891, 0, 891, 1782, 2673, 3564, 4455, 5346, 6237, 2673, 1782, 891, 0, 891, 1782, 2673, 3564, 4455, 5346, 3564, 2673, 1782, 891, 0, 891, 1782, 2673, 3564, 4455, 4455, 3564, 2673
(list; graph; refs; listen; history; internal format)
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OFFSET
| 10,1
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COMMENTS
| a(palindrome ) = 0. a(n) = a(R(n))
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FORMULA
| When n has two digits a(n)= 891*ABS(x-y). (Here x,y are the digits of n and ABS(n) is the absolute value of n.) - Keith Schneider, Jun 16 2007
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EXAMPLE
| a(12) = ABS(1221-2112) = 891.
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CROSSREFS
| Cf. A110722, A110723, A110724, A110725, A110727.
Sequence in context: A202528 A006916 A128871 * A204366 A124666 A125303
Adjacent sequences: A110723 A110724 A110725 * A110727 A110728 A110729
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KEYWORD
| base,easy,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 09 2005
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EXTENSIONS
| More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Feb 14 2011
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