A032237 Shifts left 2 places under "DGK" (bracelet, element, unlabeled) transform.

1, 1, 1, 1, 2, 2, 4, 6, 10, 17, 29, 53, 93, 169, 308, 566, 1068, 1975, 3742, 7061, 13427, 25634, 49151, 94474, 182262, 352361, 683304, 1327941, 2586839, 5049398, 9873715, 19343014, 37952032, 74584811, 146783263, 289264739