Lesser of a twin-prime pair where both are expressible as the sum of two triangular numbers.

Terms

a(0) =11a(1) =29a(2) =137a(3) =191a(4) =461a(5) =659a(6) =821a(7) =1091a(8) =1721a(9) =2027a(10) =2081a(11) =2711a(12) =3359a(13) =3539a(14) =3917a(15) =6131a(16) =6761a(17) =7589a(18) =7877a(19) =7949a(20) =8219a(21) =9461a(22) =9857a(23) =11351a(24) =12107a(25) =12377a(26) =13691a(27) =13997a(28) =14447a(29) =16139