Group successively larger prime numbers so that the sum of the n-th group is a multiple of n. Sequence gives the sum for each group.
A074128
Group successively larger prime numbers so that the sum of the n-th group is a multiple of n. Sequence gives the sum for each group.
Terms
- a(0) =2a(1) =8a(2) =18a(3) =72a(4) =60a(5) =78a(6) =553a(7) =1336a(8) =4743a(9) =4370a(10) =726a(11) =1524a(12) =14027a(13) =2380a(14) =6330a(15) =24800a(16) =9214a(17) =5886a(18) =19038a(19) =2240a(20) =25515a(21) =5192a(22) =46138a(23) =9456a(24) =42125a(25) =10842a(26) =56619a(27) =103068a(28) =170868a(29) =85140
External references
- oeis: A074128