A022884 n-th index k such that p(k) + p(k+3) = p(k+1) + p(k+2).

3, 4, 5, 6, 9, 12, 16, 21, 25, 26, 27, 29, 33, 37, 41, 43, 48, 54, 56, 63, 71, 74, 77, 80, 81, 84, 88, 92, 93, 100, 103, 105, 108, 124, 125, 126, 134, 140, 142, 147, 149, 151, 153, 156, 165, 171, 175, 176, 181, 185, 191, 200, 208, 211, 216, 224, 234, 235