39632

Appears in sequences

• Number of symmetric reflexive relations on n nodes: (1/2)*A000666.at n=6A000250
• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CON = CIT-1 H2[B2Si54O112] starting with a T3 atom.at n=14A019099
• a(n) = b(n) + d(n), where b(n) = (n-th Lucas number) and d(n) = (n-th non-Fibonacci number).at n=21A023484
• Numbers k such that k!6 - 3 is prime, where k!6 is the sextuple factorial number (A085158).at n=25A279646
• Numbers k such that s(k) = s(k+1) but phi(k) != phi(k+1), where s(k) = phi(k) + phi(phi(k)) + ... + 1 is the sum of iterated phi (A092693).at n=18A291177