Number of primes between pairs of consecutive highly composite numbers (A002182).

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =2a(6) =4a(7) =2a(8) =13a(9) =11a(10) =11a(11) =20a(12) =56a(13) =18a(14) =59a(15) =58a(16) =105a(17) =307a(18) =284a(19) =278a(20) =528a(21) =515a(22) =501a(23) =241a(24) =1684a(25) =466a(26) =456a(27) =2491a(28) =2403a(29) =4676