A225355 a(n) = A221565(n)/4.

0, 1, 2, 4, 4, 4, 7, 12, 8, 4, 8, 16, 16, 20, 21, 28, 16, 4, 8, 16, 24, 28, 36, 44, 34, 28, 24, 44, 44, 52, 49, 60, 32, 4, 8, 16, 24, 28, 38

Offset: 0

Author

Omar E. Pol, May 13 2013

Keywords

• nonn
• tabf
• more

Examples

			When written as a irregular triangle begins:
0;
1;
2;
4,4;
4,7,12,8;
4,8,16,16,20,21,28,16;
4,8,16,24,28,36,44,34,28,24,44,44,52,49,60,32;
4,8,16,24,28,38...
		

Links

• N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS
• Index entries for sequences related to toothpick sequences

Crossrefs

Row lengths give 1 together with A011782. Right border gives 0 together with A000079.

Cf. A139251, A182635, A221565.