36900

Appears in sequences

• Number of shapes of height-balanced AVL trees with n nodes.at n=21A006265
• Numbers having four 5's in base 9.at n=20A043476
• Exponential abundant numbers: integers k for which A126164(k) > k, or equivalently for which A051377(k) > 2k.at n=37A129575
• Number of shapes of height-balanced AVL trees of height at most 6 with n nodes.at n=22A134306
• Numbers with prime factorization pq^2r^2s^2.at n=20A189344
• Number of (n+1) X (2+1) 0..1 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=12A253429
• Numbers n such that n is the average of four consecutive primes n-13, n-1, n+1 and n+13.at n=5A260959
• Partial sums of A140091.at n=40A267370
• Sum T(n,k) of the k-th last entries in all blocks of all set partitions of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=49A286897
• Numbers i such that Fibonacci(i) is divisible by i, i+1, i+2, and i+3.at n=15A298685
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=6A316871
• Number of n X 7 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=2A316875
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=38A316876
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=42A316876
• Exponential pseudoperfect numbers (A318100) that are not e-perfect (A054979).at n=35A321206
• Exponential admirable numbers: numbers k such that there is a proper exponential divisor d of k such that esigma(k) - 2*d = 2*k, where esigma is the sum of exponential divisors function (A051377).at n=33A336680
• Numbers m such that phi(m)*tau(m) is a square but phi(m)/tau(m) is not the square of an integer.at n=18A341940
• Numbers with exactly 9 semiprime divisors.at n=34A350416
• Exponential unitary abundant numbers: numbers k such that A322857(k) > 2*k.at n=32A383693
• Exponential squarefree exponential abundant numbers: numbers k such that A361174(k) > 2*k.at n=31A383697