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A185958 Accumulation array of the array max{n,k}, by antidiagonals. 2
1, 3, 3, 6, 7, 6, 10, 13, 13, 10, 15, 21, 22, 21, 15, 21, 31, 34, 34, 31, 21, 28, 43, 49, 50, 49, 43, 28, 36, 57, 67, 70, 70, 67, 57, 36, 45, 73, 88, 94, 95, 94, 88, 73, 45, 55, 91, 112, 122, 125, 125, 122, 112, 91, 55, 66, 111, 139, 154, 160, 161, 160, 154, 139, 111, 66, 78, 133, 169, 190, 200, 203, 203, 200, 190, 169, 133, 78, 91, 157, 202, 230, 245, 251, 252, 251, 245, 230, 202, 157, 91, 105, 183, 238, 274, 295, 305, 308, 308, 305, 295, 274, 238, 183, 105 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A member of the accumulation chain

... < A185917 < A051125 < A185958 < ...,

where A051125, written as a rectangular array M, is given by M(n,k)=max{n,k}.  See A144112 for the definition of accumulation array.

row 1: A000217

row 2: A002061

diag (1,7,...): A002412

diag (3,13,..): A016061

antidiagonal sums: A070893

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

Northwest corner:

1....3....6....10....15

3....7....13...21....31

6....13...22...34....49

10...21...34...50....70

CROSSREFS

Cf. A144112, A051125.

Sequence in context: A021301 A016652 A008867 * A273062 A269170 A003879

Adjacent sequences:  A185955 A185956 A185957 * A185959 A185960 A185961

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling, Feb 07 2011

STATUS

approved

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Last modified December 8 18:37 EST 2019. Contains 329865 sequences. (Running on oeis4.)