1,2

a(101) = 0 and A111707(101) = 1, but all previous terms match.

a(n) = A169669(n) for n <= 100.

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

a(n) = A054054(n)*A054055(n). - Reinhard Zumkeller, Apr 29 2015

a(3) = 3 * 3 = 9, a(232) = 3 * 2 = 6, a(1889009898) = 9 * 0 = 0.

(Haskell)

a115300 n = a054054 n * a054055 n -- Reinhard Zumkeller, Apr 29 2015

Cf. A037904 (greatest-least), A115299 (greatest+least), A111707.

Cf. A054054, A054055, A169669.

Sequence in context: A334832 A169669 A111707 * A085942 A066308 A063462

Adjacent sequences: A115297 A115298 A115299 * A115301 A115302 A115303

base,nonn

Rick L. Shepherd, Jan 20 2006

approved