已知数列{an},a1=−14,an=1−1an−1(n>1),则a31=( )
已知数列{an}满足a1=2,an+1-an=an+1*an,那么a31等于
已知数列{an}满足an+1=an−22an−3,n∈N*,a1=12.
已知数列{an}满足a1=2,an+1=1+an1−an(n∈N*),则a1a2a3…a2010的值为( )
数列{an}足a1=2,a2=1,并且an−1−anan•an−1=an−an+1an•an+1(n≥2),则数列{an
已知数列{an}满足a1=3,an+1−3an=3n(n∈N*),数列{bn}满足bn=an3n.
已知a为实数,数列{an}满足a1=a,当n≥2时an=an−1−3,(an−1>3)4−an−1,(an−1≤3),
已知数列{an}满足an+1=an+n,a1等于1,则an=?
已知数列{an}中,a1=3,前n项和Sn=12(n+1)(an+1)−1
已知数列{an}满足an=2an-1+2n-1(n≥2),a1=5,bn=an−12n
如果数列{an}满足a1=2,a2=1,且an−1−anan−1=an−an+1an+1(n≥2),则这个数列的第10项
已知数列an满足条件a1=-2 a(n+1)=2an/(1-an) 则an=
已知数列{an}满足a1=1,an+1=2an/(an+2)(n∈N+),则数列{an}的通项公式为