a(n) is the smallest number that is the sum of both 2n-1 and 2n+1 consecutive primes.

Terms

a(0) =23a(1) =83a(2) =119a(3) =401a(4) =1025a(5) =3321a(6) =863a(7) =5683a(8) =1523a(9) =3397a(10) =3979a(11) =8983a(12) =7901a(13) =21775a(14) =11131a(15) =9073a(16) =14699a(17) =16277a(18) =30895a(19) =9167a(20) =15947a(21) =40091a(22) =105131a(23) =54923a(24) =14413a(25) =15605a(26) =122135a(27) =29775a(28) =173649a(29) =80841