59340

Appears in sequences

• a(n) = Sum_{d|10} phi(d)*n^(10/d).at n=3A054609
• a(n) = Sum_{d|n} phi(d)*3^(n/d).at n=10A054610
• Numbers n such that the number of primes between n^2 and (n+1)^2 = the number of primes between n and Reverse(n) (inclusive).at n=25A074817
• Triangular numbers whose sum of prime factors (with repetition) is also triangular.at n=31A076169
• Triangular numbers which are 6-almost primes.at n=34A076580
• Number of 3 X n (0,1) matrices such that each row and each column is nondecreasing or nonincreasing.at n=29A086113
• Numbers n such that sigma(n) = 12*phi(n).at n=8A104902
• Triangular numbers that are sums of two consecutive primes.at n=36A111163
• Number of compositions of {1,..,n} such that no two adjacent parts are of equal size (labeled Carlitz compositions), allowing parts to be of size 0.at n=6A114903
• Partial sums of dodecahedral numbers (A006566).at n=15A116689
• Triangular numbers that are sums of twin prime pairs.at n=15A165966
• Number of 4-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.at n=33A187299
• Number of all possible tetrahedra of any size, having reverse orientation to the original regular tetrahedron, formed when intersecting the latter by planes parallel to its sides and dividing its edges into n equal parts.at n=44A216172
• Number of Motzkin paths of length n with no level steps at height 1.at n=15A217312
• Upper Pythagorean twins.at n=26A228877
• Numbers k such that k+1, 2k+1, 3k+1, 4k+1 are all prime.at n=19A237189