Conjectured lower bound for the number of spheres of radius 1 that can be packed in a sphere of radius n.

A121346

Conjectured lower bound for the number of spheres of radius 1 that can be packed in a sphere of radius n.

Terms

    a(0) =2a(1) =11a(2) =31a(3) =68a(4) =124a(5) =205a(6) =316a(7) =460a(8) =642a(9) =866a(10) =1138a(11) =1461a(12) =1839a(13) =2278a(14) =2781a(15) =3354a(16) =4000a(17) =4724a(18) =5531a(19) =6424a(20) =7409a(21) =8490a(22) =9671a(23) =10956a(24) =12351a(25) =13859a(26) =15485a(27) =17234a(28) =19110a(29) =21116

External references