7448923domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={2}.at n=27A079969G.f. satisfies A(x) = 1 + x*A(x)^2 / (1 + x*A(x)^4).at n=14A364764Prime numbersat n=505080