Number of times prime(n) (the n-th prime) occurs as the least prime factor among numbers 1 .. (prime(n)^2 * prime(n+1)): a(n) = A078898(A251720(n)).
A250477
Number of times prime(n) (the n-th prime) occurs as the least prime factor among numbers 1 .. (prime(n)^2 * prime(n+1)): a(n) = A078898(A251720(n)).
Terms
- a(0) =6a(1) =8a(2) =12a(3) =21a(4) =33a(5) =45a(6) =63a(7) =80a(8) =116a(9) =148a(10) =182a(11) =232a(12) =265a(13) =296a(14) =356a(15) =433a(16) =490a(17) =548a(18) =625a(19) =674a(20) =740a(21) =829a(22) =919a(23) =1055a(24) =1187a(25) =1252a(26) =1313a(27) =1376a(28) =1446a(29) =1657
External references
- oeis: A250477