42926

Appears in sequences

• Number of alkyls S C_{n+4} H_{2n+4} with n carbon atoms.at n=12A000650
• a(n) = n^2*(5*n-3)/2.at n=26A006597
• Sum of digits in n-th term of A022470.at n=35A022475
• Second pentagonal numbers that are interprime.at n=19A205881
• G.f.: Sum_{n>=0} (n+1) * x^n * (1 + x^n)^n.at n=85A326002
• Number of centrally symmetric Baxter permutations of length n.at n=15A383372