121703

Appears in sequences

• Eighth diagonal (m=7) of triangle A084938; a(n) = A084938(n+7,n) = (n^7 + 63*n^6 + 1855*n^5 + 34125*n^4 + 438424*n^3 + 3980172*n^2 + 20946960*n)/5040.at n=7A090393
• Index in A092243 where -n first appears.at n=17A269738
• Number of permutations of [2n] with exactly n cycles such that the elements of each cycle form an integer interval.at n=7A287899