1,2

a(n) = a(n-1) + A129379(n) for n>1, a(1) = A129379(1).

a(n) = A129379(n+1)/A000217(n-2) for n>2.

Cf. A052560.

Sequence in context: A075207 A136121 A023369 this_sequence A085866 A139416 A013563

Adjacent sequences: A129377 A129378 A129379 this_sequence A129381 A129382 A129383

nonn

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 14 2007