1,1

J. C. Lagarias, V. S. Miller and A. M. Odlyzko, Computing pi(x): The Meissel-Lehmer method, Math. Comp., 44 (1985), pp. 537-560.

a(1,1)=1; a(n,m) =a(n,m-1)-a(Floor[n/Prime[m]],m-1);

{1},

{0, -1},

{0, -1, -1},

{0, 0, 0, 0},

{0, 0, 0, 0, 0},

{0, 0, 1, 1, 1, 1},

{0, 0, 1, 1, 1, 1, 1},

{0, 0, 1, 1, 1, 1, 1, 1},

{0, 0, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},

{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},

{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},

{0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},

{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}

Cf. A000720, A006880, A007053, A075986, A059305.

Sequence in context: A162549 A115788 A102863 this_sequence A077052 A133566 A077051

Adjacent sequences: A131480 A131481 A131482 this_sequence A131484 A131485 A131486

tabl,sign

Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Oct 01 2007