Last term where no prime sums occur in A161190 in a 4-diagonal set of 24 terms.

Terms

a(0) =5637a(1) =7429a(2) =9541a(3) =11397a(4) =13253a(5) =14085a(6) =16517a(7) =16581a(8) =19653a(9) =20613a(10) =20869a(11) =21957a(12) =22021a(13) =23493a(14) =24325a(15) =27333a(16) =31877a(17) =34117a(18) =35204a(19) =35653a(20) =35717a(21) =36101a(22) =40197a(23) =40837a(24) =41733a(25) =45957a(26) =47493a(27) =47557a(28) =48069a(29) =49093