289685

Appears in sequences

• First differences of the partition numbers of the primes.at n=17A182739
• a(0)=0: a(n)=A002865(2*n)+A002865(2*n+1), n>=1.at n=30A182844
• G.f.: exp( Sum_{n>=1} (x^n/n) / Product_{d|n} (1 - d*x^(n/d))^d ).at n=10A205486
• Number T(n,k) of plane partitions of n into parts of exactly k sorts which are introduced in ascending order; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=49A319730