26938

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 49.at n=32A020388
• McKay-Thompson series of class 36D for the Monster simple group.at n=48A058647
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, 0, 1), (1, 0, -1), (1, 1, -1)}.at n=10A148631
• McKay-Thompson series of class 36D for the Monster group with a(0) = 2.at n=48A186964
• McKay-Thompson series of class 36D for the Monster group with a(0) = 1.at n=48A187020
• Number of free tetrakis polyaboloes (poly-[4.8^2]-tiles) with n cells, allowing holes, where division into tetrakis cells (triangular quarters of square grid cells) is significant.at n=13A197465
• Numbers n such that sigma(n) + sigma(n-1) = 3n, where sigma(n) = sum of divisors of n (A000203).at n=8A222174
• Numbers k that divide sigma(k) + sigma(k-1).at n=19A227306
• Number of partitions of n into 7 parts such that every i-th smallest part (counted with multiplicity) is different from i.at n=37A244243
• Numbers n such that n*A007954(n) contains the same distinct digits as n.at n=24A248039
• Expansion of f(-x^6, -x^12)^2 / (f(-x, -x) * f(-x^3, -x^15)) in powers of x where f(, ) is Ramanujan's general theta function.at n=24A261240
• Semiprimes that are the sum of the first n odd primes for some n.at n=33A274182