A257779 Largest k, such that n is a Belgian-k number.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 9, 8, 8, 6, 9, 8, 9, 8, 7, 9, 8, 9, 9, 6, 8, 9, 7, 5, 3, 8, 7, 8, 8, 8, 9, 6, 3, 8, 6, 5, 9, 5, 8, 9, 5, 7, 9, 6, 3, 6, 6, 8, 9, 8, 4, 6, 9, 6, 9, 7, 8, 9, 6, 8, 8, 4, 7, 3, 8, 8, 9, 4, 9, 4, 7

Offset: 0

Author

Reinhard Zumkeller, May 08 2015

Keywords

• nonn

Comments

See A106039 for definition of Belgian-k numbers;

a(n) = A257770(n,A257773(n));

a(n) >= A257778(n); a(A257785(n)) = A257778(A257785(n)).

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A106039, A257770, A257773, A257778.

Programs

Haskell

a257779 = last . a257770_row