48099263domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(0) = 0, a(n) = a(n - 1)*2^(n + 1) + 2^n - 1. That is, add one 0 and n 1's to the binary representation of previous term.at n=6A215203Smallest number whose binary expansion has n distinct run-sums.at n=6A353930Prime numbersat n=2893725