2175823domain: NAppears in sequencesa(n) = Sum_{k=0..n} (-1)^k * binomial(n, k) * q(k), where q(k) is A000009 (partitions into distinct parts).at n=26A293467First term of the n-th differences of the strict partition numbers. Inverse zero-based binomial transform of A000009.at n=26A380412