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A053392 Add consecutive pairs of digits and concatenate them. +0
2
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 210 (list; graph; listen)
OFFSET

10,2

EXAMPLE

For example, the first term corresponds to n=10 (see the offset) and 10 -> 1+0 = 1, hence a(10)=1; 987 -> 9+8.8+7 -> 17.15 -> 1715, so a(987)=1715.

CROSSREFS

Cf. A053393.

Sequence in context: A117230 A093882 A138953 this_sequence A114925 A043270 A089898

Adjacent sequences: A053389 A053390 A053391 this_sequence A053393 A053394 A053395

KEYWORD

nonn,easy,nice,base

AUTHOR

njas, Jan 07 2000

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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