83436
domain: N
Appears in sequences
- "DFJ" (bracelet, size, labeled) transform of 2,1,1,1...at n=10A032210
- a(1) = 0, then smallest triangular number such that a(n+1)- a(n) is a palindrome.at n=28A075057
- Triangle read by rows, arising in enumeration of permutations by cyclic valleys, cycles and fixed points.at n=19A216964
- Triangle read by rows, related to Bell numbers A000110: A216962 interlaced with A216964.at n=41A217204
- Number of (n+1) X (n+1) 0..2 arrays with the maximum plus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=3A237226
- Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=3A237230
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=24A237234
- Numbers k such that the symmetric representation of sigma(k) has only two parts and they meet at the center of the Dyck path.at n=21A262259