20964

Appears in sequences

• Numbers that are the sum of 9 nonzero 8th powers.at n=32A003387
• Near Cullen numbers: k such that (k+1)*2^k + 1 is prime.at n=24A029544
• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 96.at n=36A031594
• Numerators of continued fraction convergents to sqrt(771).at n=9A042486
• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), with a(1) = a(2) = 1 and a(3) = 2.at n=15A049938
• Total number of parts in all partitions of n into relatively prime parts.at n=25A085410
• McKay-Thompson series of class 18g for the Monster group.at n=61A112156
• a(n) is the number of digits in the decimal representation of the smallest power of n that contains nine consecutive identical digits.at n=36A217184
• Number of compositions of n containing no part p of multiplicity p.at n=16A336269
• Records in A030000.at n=43A372044