0,3

When viewed as a table, row sums are given by sequence A079274

The two cyclic partitions of five are 5 and 3+2 yielding (5+1)=6 and (3+1)*(2+1) = 4*3 = 12

The array begins

1

0

3

4

5 9

6 12

7 15 16 27

8 18 20 36

Cf. A122172 A079274 A122402.

Sequence in context: A095028 A011246 A020863 this_sequence A122403 A065336 A036710

Adjacent sequences: A122398 A122399 A122400 this_sequence A122402 A122403 A122404

easy,more,nonn,tabf

Alford Arnold (Alford1940(AT)aol.com), Sep 01 2006