33115

Appears in sequences

• Number of partitions of n having no doubletons. By a doubleton in a partition we mean an occurrence of a part exactly twice (the partition [4,(3,3),2,2,2,(1,1)] of 18 has two doubletons, shown between parentheses).at n=45A116645
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.at n=8A151037
• a(n) = n*(4*n^2 - 3*n + 5)/6.at n=36A174723
• Number of days after Jan 01 1000 such that the date written in the ISO-8601-format YYYYMMDD is palindromic.at n=11A210883
• Number of (n+4) X 9 0..2 matrices with each 5 X 5 subblock idempotent.at n=5A224622
• Number of (n+4) X 10 0..2 matrices with each 5 X 5 subblock idempotent.at n=4A224623