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A027200 Triangular array T read by rows: T(n,k) = number of partitions of n into an even number of parts, each >=k. 1
0, 1, 0, 1, 0, 0, 3, 1, 0, 0, 3, 1, 0, 0, 0, 6, 2, 1, 0, 0, 0, 7, 2, 1, 0, 0, 0, 0, 12, 4, 2, 1, 0, 0, 0, 0, 14, 4, 2, 1, 0, 0, 0, 0, 0, 22, 6, 3, 2, 1, 0, 0, 0, 0, 0, 27, 7, 3, 2, 1, 0, 0, 0, 0, 0, 0, 40, 11, 5, 3, 2, 1, 0, 0, 0, 0, 0, 0, 49, 12, 5, 3, 2, 1, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,7

LINKS

Table of n, a(n) for n=1..87.

FORMULA

T(n, k) = Sum{E(n, i)}, k<=i<=n, E given by A027186.

T(n,k) + A027199(n,k) = A026807(n,k). - R. J. Mathar, Oct 18 2019

EXAMPLE

0,

1, 0,

1, 0, 0,

3, 1, 0, 0,

3, 1, 0, 0, 0,

6, 2, 1, 0, 0, 0,

7, 2, 1, 0, 0, 0, 0,

12, 4, 2, 1, 0, 0, 0, 0,

14, 4, 2, 1, 0, 0, 0, 0, 0,

22, 6, 3, 2, 1, 0, 0, 0, 0, 0,

27, 7, 3, 2, 1, 0, 0, 0, 0, 0, 0,

40,11, 5, 3, 2, 1, 0, 0, 0, 0, 0, 0,

49,12, 5, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0,

CROSSREFS

Cf. A027186, A027187 (1st column).

Sequence in context: A330018 A065413 A107131 * A035654 A170846 A085604

Adjacent sequences:  A027197 A027198 A027199 * A027201 A027202 A027203

KEYWORD

nonn,tabl

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 4 06:34 EDT 2022. Contains 357237 sequences. (Running on oeis4.)