A038638 Numbers n such that n-th and (n+1)st term of A038593 differ by 7.

2, 8, 10, 16, 25, 34, 44, 55, 68, 75, 80, 84, 102, 106, 120, 133, 139, 160, 172, 184, 196, 208, 233, 239, 262, 279, 288, 290, 312, 320, 352, 353, 355, 362, 384, 417, 419, 424, 462, 484, 500, 524, 529, 539, 544, 561, 567, 582, 584, 610, 619, 624, 669, 684, 718