54648

Appears in sequences

• Sums of 3 distinct powers of 6.at n=33A038479
• a(n) is the number of n-tosses having a run of 4 or more heads for a fair coin (i.e., probability is a(n)/2^n).at n=16A050232
• Numerators of increasingly better rational approximations to Pi with increasing denominators (3/1, 13/4, 16/5, 19/6, 22/7, 179/57, ...)at n=21A063674
• a(n) = (9/2)*(n-1)*(n-2)*(n-3).at n=24A134171
• Numbers with prime factorization p*q*r^3*s^3 (where p, q, r, s are distinct primes).at n=30A190108
• Define a pair of sequences c_n, d_n by c_0=0, d_0=1 and thereafter c_n = c_{n-1}+d_{n-1}, d_n = c_{n-1}+4*n+2; sequence here is c_n.at n=18A192751
• Column 3 of array in A226513.at n=35A226514