7802161domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of 0..6 arrays x(0..n-1) of n elements with each no smaller than the sum of its three previous neighbors modulo 7.at n=10A200666G.f.: Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} 1/(1 - x^j)^4.at n=32A376710Prime numbersat n=527294