37332

Appears in sequences

• a(n) = binomial(n+4,4)*(4*n+5)/5.at n=14A034263
• G.f.: 1/((1-x)*(1-x^2))^3.at n=28A038163
• Number of permutations in the symmetric group S_n whose order is 1 or prime.at n=8A060181
• Numbers k such that the number of steps to reach 1 in '3x+1' problem equals tau(k), the number of divisors of k.at n=45A070980
• Euler's totient of A104365(n) = A104350(n) + 1.at n=9A104371
• Sums of 2 successive primes s = prime(m) + prime(m+1) such that all digits of s are primes.at n=31A173719
• Antidiagonal sums of the convolution array A213783.at n=33A213760
• Number of partitions of n such that the number of odd parts is a part and the number of even parts is not a part.at n=50A240578
• Irregular triangle read by rows: T(n,k) is the number of unordered pairs of nodes at distance k in the n-Apollonian network.at n=15A289722
• Expansion of 1 / ((1-x)^4 - x^6).at n=17A392542