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A048212 Triangular array T read by rows: T(i,j)=b(i+1)-b(i+1-j); j=1,2,...,i; i=1,2,3,...; b=A004979. +0
13
2, 1, 3, 4, 5, 7, 6, 10, 11, 13, 8, 14, 18, 19, 21, 9, 17, 23, 27, 28, 30, 12, 21, 29, 35, 39, 40, 42, 15, 27, 36, 44, 50, 54, 55, 57, 16, 31, 43, 52, 60, 66, 70, 71, 73, 20, 36, 51, 63, 72, 80, 86, 90, 91, 93, 22, 42, 58, 73, 85, 94, 102, 108 (list; table; graph; listen)
OFFSET

1,1

EXAMPLE

Rows: {2}; {1,3}; {4,5,7}; ...

CROSSREFS

Sequence in context: A109920 A109919 A082750 this_sequence A077159 A075379 A122512

Adjacent sequences: A048209 A048210 A048211 this_sequence A048213 A048214 A048215

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified July 8 18:40 EDT 2008. Contains 141013 sequences.


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