A124222 - OEIS

A124222

Triangular array read by rows, with shape sequence A002865, generated from A123682.

1, 1, 3, 5, 0, 9, 2, 13, 7, 1, 0, 19, 18, 4, 2, 25, 36, 12, 10, 0, 2, 0, 33, 64, 26, 32, 2, 11, 2, 1, 41, 103, 49, 78, 7, 40, 13, 6, 1, 0, 3, 0

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OFFSET

1,3

COMMENTS

The shape sequence for A124222 is essentially A002865 since its columns are based on source partitions (1,22,33,222,44,332,2222,333,...). The row sum sequence for A124222 is essentially A001045.

LINKS

Table of n, a(n) for n=1..42.

EXAMPLE

The array begins

5 0

9 2

13 7 1 0

19 18 4 2

25 36 12 10 0 2 0

33 64 26 32 2 11 2 1

41 103 49 78 7 40 13 6 1 0 3 0

CROSSREFS

Cf. A001045 (row sums), A002865, A099392, A123682, A123683.

Sequence in context: A099895 A248192 A323987 * A200615 A349605 A318204

Adjacent sequences: A124219 A124220 A124221 * A124223 A124224 A124225

KEYWORD

nonn,tabf

AUTHOR

Alford Arnold, Oct 19 2006

STATUS

approved