954429895domain: NAppears in sequencesGaussian binomial coefficient [ n,2 ] for q = -2.at n=15A015249Exponential self-convolution of Jacobsthal numbers (divided by 2).at n=17A084152Jacobsthal oblong numbers.at n=16A084175A084175 interleaved with 2*A084175.at n=32A138477First differences of A138477.at n=32A138495