Number of ways to write n as the arithmetic mean of a set of distinct primes.

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =5a(7) =10a(8) =9a(9) =18a(10) =19a(11) =40a(12) =37a(13) =80a(14) =79a(15) =188a(16) =163a(17) =385a(18) =355a(19) =855a(20) =738a(21) =1815a(22) =1555a(23) =3796a(24) =3237a(25) =8281a(26) =6682a(27) =17207a(28) =13967a(29) =35370