84770domain: NAppears in sequencesNumber of compositions of n with unique smallest part.at n=22A105039a(n) = 3*a(n-1) - a(n-2) - a(n-3) + 12.at n=11A121991Number of arrays of 5 integers in -n..n with sum zero and the sum of every adjacent pair being odd.at n=18A202077Numbers k such that 3^(k-1) - 2^k is prime.at n=33A363375