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A057060 Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; each k is an R(i(k),j(k)) and A057058(n)=i(n-th prime)). 1
1, 2, 2, 1, 1, 3, 2, 4, 2, 1, 3, 1, 5, 7, 2, 8, 4, 6, 1, 5, 7, 1, 5, 11, 6, 10, 12, 2, 4, 8, 7, 11, 1, 3, 13, 15, 4, 10, 14, 2, 8, 10, 1, 3, 7, 9, 1, 13, 17, 19, 2, 8, 10, 20, 4, 10, 16, 18, 1, 5, 7, 17, 7, 11, 13, 17, 6, 12, 22, 24, 2, 8, 16, 22, 1, 5, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

R(i,j)=C(i+j-1,2)+i; cf. A000027, A057061.

LINKS

Table of n, a(n) for n=1..77.

CROSSREFS

Sequence in context: A093869 A057431 A179541 * A198380 A152805 A064894

Adjacent sequences:  A057057 A057058 A057059 * A057061 A057062 A057063

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jul 30 2000

STATUS

approved

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Last modified April 22 11:46 EDT 2019. Contains 322330 sequences. (Running on oeis4.)