29703

Appears in sequences

• a(n) = 2^(n-1)*(7*n-12) + 7.at n=10A048500
• Numbers k which when sandwiched between two 3's give a multiple of k.at n=13A116438
• Numbers k which when sandwiched between two 6's give a multiple of k.at n=26A116441
• Numbers k which when sandwiched between two 9's give a multiple of k.at n=17A116444
• Self-convolution of A180711.at n=38A180712
• Divisors of the repunit 111111111111 = A002275(12).at n=47A197318
• Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^2<=x^2+y^2.at n=37A211806
• Number of partitions p of n such that the multiplicity of (min(p) + max(p))/2 is a part.at n=50A240497
• Product of the lowest and highest prime factors of n-th repunit A002275(n).at n=10A249627
• Numbers k such that 7*R_(k+2) - 6*10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=22A257027
• Number of strict compositions of n with alternating parts strictly decreasing.at n=45A342343
• a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero icosahedral numbers in exactly n ways, or -1 if no such integer exists.at n=24A360215