55048

Appears in sequences

• Expansion of cosh(log(1+x)*cosh(x)).at n=8A009134
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 1), (0, 1), (1, 0), (1, 1)}.at n=9A151441
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7.at n=11A252672
• Number of nX4 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=7A281761
• Even numbers that are not the sum or difference of two binary palindromes (A006995).at n=29A290424
• Number of parts in all twice partitions of n where the first partition is strict.at n=15A327607
• Records in A009101.at n=22A354710