3785154domain: NAppears in sequences"DHK" (bracelet, identity, unlabeled) transform of 2,2,2,2,...at n=17A032251Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1) + n + 1, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=27A294549