49527

Appears in sequences

• Sequence of alternating increasing odd and increasing even numbers such that the sum of any two terms of opposite parity is a prime number.at n=18A162662
• Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero.at n=36A190072
• Number of zero-sum -n..n arrays of 4 elements with first through third differences also in -n..n.at n=39A202512
• Number of digits in the decimal expansion of the number of partitions of 7^n.at n=11A248735
• Number of edges in an equilateral triangle "frame" of size n (see Comments in A328526 for definition).at n=14A333030