20148

Appears in sequences

• Number of terms in n-th derivative of a function composed with itself 5 times.at n=12A022813
• Number of binary [ n,4 ] codes of dimension <= 4 without zero columns.at n=16A034338
• Number of j-sets in symmetric group S_n.at n=17A125548
• Walks with n steps on the x-axis using steps {1,0,-1} and visiting no point more than twice.at n=15A212589
• Initial members of abundant quadruplets, i.e., values of k such that (k, k+2, k+4, k+6) are all abundant numbers.at n=35A231089
• Numbers n such that (k!+n)/(k+n) is prime for some k.at n=20A242916
• Number of length n+3 0..2 arrays with at most one downstep in every n consecutive neighbor pairs.at n=12A255110
• Numbers k for which rank of the elliptic curve y^2=x^3+k*x is 4.at n=17A309031
• Consecutive internal states of the linear congruential pseudo-random number generator (321*s + 123) mod 10^5 when started at 1.at n=9A383128