A215827 Number of intermediate configurations needed to be stored to calculate the number of ways in which a 9 X n grid can be tiled with triominoes.

4, 360, 4261, 20104, 44654, 70166, 95681, 121196, 146711, 172226, 197741, 223256, 248771, 274286, 299801, 325316, 350831, 376346, 401861, 427376, 452891, 478406, 503921, 529436, 554951, 580466, 605981, 631496, 657011, 682526, 708041, 733556, 759071, 784586

Offset: 1

Author

V. Raman, Aug 23 2012

Keywords

• nonn

Comments

a(n+1) - a(n) = 25515, for all n >= 6.

Links

• V. Raman, Table of n, a(n) for n = 1..42
• Project Euler, Problem #161: Triominoes

Crossrefs

Cf. A215826 (Number of ways in which a 9 X n grid can be tiled with triominoes).

Extensions

Definition corrected by V. Raman, Oct 22 2012

a(1) inserted and more terms a(23)-a(34) from V. Raman, Oct 24 2012