92823domain: NAppears in sequencesNumber of solutions to c(1)*prime(2) + ... + c(n)*prime(n+1) = 2, where c(i) = +-1 for i > 1, c(1) = 1.at n=25A022899Numbers whose set of base-13 digits is {3,4}.at n=30A032837Numbers n with property that A062234(n) = A062234(n+1) = A062234(n+2) = A062234(n+3).at n=27A257892