Group the composite numbers so that the sum of the n-th group is a multiple of the n-th prime: (4), (6), (8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22), (24, 25), (26, 27, 28, 30, 32), (33, 34, ...), ... Sequence gives the group sum divided by n-th prime for the n-th group.
A074127
Group the composite numbers so that the sum of the n-th group is a multiple of the n-th prime: (4), (6), (8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22), (24, 25), (26, 27, 28, 30, 32), (33, 34, ...), ... Sequence gives the group sum divided by n-th prime for the n-th group.
Terms
- a(0) =2a(1) =2a(2) =33a(3) =7a(4) =13a(5) =74a(6) =52a(7) =83a(8) =304a(9) =109a(10) =115a(11) =52a(12) =199a(13) =438a(14) =891a(15) =44a(16) =40a(17) =47a(18) =512a(19) =2595a(20) =971a(21) =195a(22) =106a(23) =1208a(24) =2229a(25) =1355a(26) =477a(27) =290a(28) =969a(29) =6938
External references
- oeis: A074127