111020domain: NAppears in sequences"DIK" (bracelet, indistinct, unlabeled) transform of 4,4,4,4...at n=8A032285Number of overpartitions of n minus the number of partitions of n.at n=30A230441Numbers k such that (29*10^k - 41)/3 is prime.at n=27A275284a(n) = Sum_{k=1..n} binomial(floor(n/k)+3,4).at n=37A365409