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Search: id:A162711
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| A162711 |
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Triangle read by rows: T(n,k) = value of the string of length k beginning at position n in the concatenation of natural numbers in decimal representation, 1<=k<=n. |
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+0
3
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| 1, 2, 23, 3, 34, 345, 4, 45, 456, 4567, 5, 56, 567, 5678, 56789, 6, 67, 678, 6789, 67891, 678910, 7, 78, 789, 7891, 78910, 789101, 7891011, 8, 89, 891, 8910, 89101, 891011, 8910111, 89101112, 9, 91, 910, 9101, 91011, 910111, 9101112, 91011121, 910111213
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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A055642(T(n,k)) <= k;
T(n,1)=A007376(n); T(n,k)=10*T(n,k-1)+A007376(k), 1<k<=n;
T(n,2)=A136414(n) for n>1.
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CROSSREFS
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Sequence in context: A076653 A114008 A110354 this_sequence A120713 A104644 A158992
Adjacent sequences: A162708 A162709 A162710 this_sequence A162712 A162713 A162714
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KEYWORD
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base,nonn,tabl
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 11 2009
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