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A185908 Array: T(n,k)=n-1+min{n,k}, by antidiagonals. 3
1, 1, 2, 1, 3, 3, 1, 3, 4, 4, 1, 3, 5, 5, 5, 1, 3, 5, 6, 6, 6, 1, 3, 5, 7, 7, 7, 7, 1, 3, 5, 7, 8, 8, 8, 8, 1, 3, 5, 7, 9, 9, 9, 9, 9, 1, 3, 5, 7, 9, 10, 10, 10, 10, 10, 1, 3, 5, 7, 9, 11, 11, 11, 11, 11, 11, 1, 3, 5, 7, 9, 11, 12, 12, 12, 12, 12, 12, 1, 3, 5, 7, 9, 11, 13, 13, 13, 13, 13, 13, 13, 1, 3, 5, 7, 9, 11, 13, 14, 14, 14, 14, 14, 14, 14, 1, 3, 5, 7, 9, 11, 13, 15, 15, 15, 15, 15, 15, 15, 15, 1, 3, 5, 7, 9, 11, 13, 15, 16, 16, 16, 16, 16, 16, 16, 16, 1, 3, 5, 7, 9, 11, 13, 15, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 3, 5, 7, 9, 11, 13, 15, 17 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

A member of the accumulation chain

... < A185907 < A185908 < A185909 < ...

(See A144112 for definitions of weight array and accumulation array.)

LINKS

Table of n, a(n) for n=1..162.

FORMULA

T(n,k)=n-1+min{n,k}, k>=1, n>=1.

EXAMPLE

Northwest corner:

1....1....1....1....1

2....3....3....3....3

3....4....5....5....5

4....5....6....7....7

MATHEMATICA

(See A185907.)

CROSSREFS

Cf. A144112, A185907, A185909.

Sequence in context: A098975 A127121 A238703 * A234951 A278493 A180975

Adjacent sequences:  A185905 A185906 A185907 * A185909 A185910 A185911

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling, Feb 06 2011

STATUS

approved

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Last modified December 7 23:05 EST 2016. Contains 278900 sequences.