1,3

Table of n, a(n) for n=1..28.

The array begins

1

0 2

1 0 6

1 2 0 15

2 2 6 0 40

3 4 6 15 0 104

5 6 12 15 40 0 273

Row five is

because the values

1 2 3 5 8 in Zeckendorf's expansion occur

2 1 2 0 5 times for natural numbers 8 through 12.

Cf. A122931.

Sequence in context: A157982 A119275 A129462 * A066387 A180663 A331327

Adjacent sequences: A122927 A122928 A122929 * A122931 A122932 A122933

nonn,tabl

Alford Arnold, Sep 20 2006

approved