OFFSET
0,3
FORMULA
a(n) = A373272(2n,n).
EXAMPLE
a(4) = 16 = 4 + (1+2) + 2 + (1+2) + (1+3): 2222, 3221, 3311, 4211, 5111.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 01 2024
STATUS
approved