47772

Appears in sequences

• Convolution of A000203 with itself.at n=47A000385
• Number of n X 2 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=32A241050
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 541", based on the 5-celled von Neumann neighborhood.at n=7A272806
• Number of sets of exactly n positive integers <= n+6 having a square element sum.at n=31A281969
• T(n,k) is the number of posets of n labeled elements with k covering relations (n>=1, k>=0). Triangle read by rows.at n=23A342589