A007825 Number of n step self-avoiding walks on 3 X infinity grid starting from (0,1).

1, 4, 10, 22, 42, 90, 182, 382, 742, 1486, 2866, 5646, 10878, 21198, 40694, 78758, 151018, 291046, 557746, 1072050, 2053586, 3941038, 7547726, 14471102, 27711106, 53099670, 101675030, 194762778, 372916642, 714195242

Offset: 0

Author

Lauren Williams (lwilliam(AT)MIT.EDU)

Keywords

• nonn
• walk

Links

• Sean A. Irvine, Table of n, a(n) for n = 0..39

Crossrefs

Cf. A302408 (starting from (0,0)), A038577, A001411.

Extensions

Title improved and more terms from Sean A. Irvine, Feb 02 2018