a(1) = 2, and for n>1: a(n) = prime(A251719(n)) * prime(A251719(n) + n - 2), where prime(n) gives the n-th prime.
A251724
a(1) = 2, and for n>1: a(n) = prime(A251719(n)) * prime(A251719(n) + n - 2), where prime(n) gives the n-th prime.
Terms
- a(0) =2a(1) =4a(2) =6a(3) =21a(4) =65a(5) =85a(6) =95a(7) =115a(8) =217a(9) =259a(10) =287a(11) =301a(12) =329a(13) =649a(14) =671a(15) =737a(16) =781a(17) =803a(18) =869a(19) =913a(20) =979a(21) =1067a(22) =1111a(23) =1133a(24) =1177a(25) =1199a(26) =1243a(27) =1703a(28) =1781a(29) =1807
External references
- oeis: A251724