41989

Appears in sequences

• a(n) = Sum_{i=0..2*n} Sum_{j=0..i} T(i, j), where T is given by A026552.at n=11A026567
• Products of two successive primes that can be partitioned in sum of three distinct primes which contain the prime divisors.at n=13A109068
• Number of h- and H-steps at level 0 in all lattice paths in B(n).at n=13A247300
• Quasi-Carmichael numbers to exactly three bases.at n=17A257753
• Numbers k such that (14*10^k + 73)/3 is prime.at n=32A271340
• Sequence of pairwise relatively prime numbers of class P_3 (see comment).at n=23A275246
• Constant term in the expansion of (1+x+y+1/x+1/y)^n without assuming commutativity.at n=9A328494