A242400 Differences between A008586 (multiples of 4) and A242399.

0, 0, 0, 0, 0, 9, 0, 9, 9, 0, 0, 0, 0, 0, 9, 27, 36, 36, 0, 0, 0, 27, 27, 36, 27, 36, 36, 0, 0, 0, 0, 0, 9, 0, 9, 9, 0, 0, 0, 0, 0, 9, 27, 36, 36, 81, 81, 81, 108, 108, 117, 108, 117, 117, 0, 0, 0, 0, 0, 9, 0, 9, 9, 81, 81, 81, 81, 81, 90, 108, 117, 117, 81

Offset: 0

Author

Reinhard Zumkeller, May 13 2014

Keywords

• nonn

Comments

a(n) = A008586(n) - A242399(n);

a(m) = 0 iff m is a term of A242407;

a(A242407(n)) = 0; a(A242408(n)) > 0.

Links

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

Crossrefs

Cf. A048728.

Programs

Haskell

a242400 n = a008586 n - a242399 n