49383

Appears in sequences

• a(n)=3a(n-1)+C(n+4,4),n>0, a(0)=1.at n=8A097787
• a(n) is the sum of all possible pairs of the first n primes.at n=29A162867
• Number of n X 2 binary arrays whose sum with another n X 2 binary array containing no more than a single 1 has rows and columns in lexicographically nondecreasing order.at n=22A225894
• Number of ways to write n as an ordered sum of 9 nonzero triangular numbers.at n=40A340954
• Odd numbers k > 1 such that A309906(k-1) < A309906(k) > A309906(k+1) < A309906(k+2) > A309906(k+3).at n=8A349938