OFFSET
0,4
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..1000
EXAMPLE
a(6) = 8: 222222, 322221, 332211, 333111, 422211, 432111, 441111, 621111.
a(7) = 2: 2222222, 7211111.
a(8) = 4: 22222222, 42222211, 44221111, 82111111.
a(9) = 9: 222222222, 322222221, 332222211, 333222111, 333321111, 622221111, 632211111, 633111111, 921111111.
a(10) = 9: 2222222222, 4222222211, 4422221111, 4442111111, 5222222111, 5422211111, 5441111111, 5522111111, (10)211111111.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 08 2023
STATUS
approved