62622

Appears in sequences

• Number of series-parallel networks with n edges.at n=13A001677
• Numbers k such that the first k base-4 digits of Pi expressed in decimal forms a prime.at n=4A065991
• Numbers with at least 2 distinct digits and whose "rotations" (including the number itself) are multiples of these digits; repeated digits allowed but digit 0 not allowed.at n=36A066484
• a(n) = n*(n + 1)*(19*n - 16)/6.at n=27A237618
• Obverse convolution (1)**A000984; see Comments.at n=4A374891
• Triangle T(n,k) read by rows: T(n,k) is the coefficient of x^k of the monic polynomial (1+x)^n + ((2*(1+x))^n - (2+x)^n) / x.at n=49A391610