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A061871
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|First digit - second digit + third digit - fourth digit ...| = 2.
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0
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2, 13, 20, 24, 31, 35, 42, 46, 53, 57, 64, 68, 75, 79, 86, 97, 101, 112, 123, 130, 134, 141, 145, 152, 156, 163, 167, 174, 178, 185, 189, 196, 200, 211, 222, 233, 240, 244, 251, 255, 262, 266, 273, 277, 284, 288, 295, 299, 310, 321, 332, 343, 350, 354, 361
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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MATHEMATICA
| Do[ a = IntegerDigits[ n ]; l = Length[ a ]; e = o = {}; Do[ o = Append[ o, a[ [ 2k - 1 ] ] ], {k, 1, l/2 + .5} ]; Do[ e = Append[ e, a[ [ 2k ] ] ], {k, 1, l/2} ]; If[ Abs[ Apply[ Plus, o ] - Apply[ Plus, e ] ] == 2, Print[ n ] ], {n, 1, 1000} ]
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CROSSREFS
| Cf. A008593, A060978-A060980, A060982, A061470-A061479, A061870-A061882.
Sequence in context: A007355 A105452 A099419 * A084651 A085509 A127485
Adjacent sequences: A061868 A061869 A061870 * A061872 A061873 A061874
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KEYWORD
| nonn,base,easy
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), May 10 2001
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