A177414 Partial sums of A001334.

1, 7, 37, 175, 793, 3523, 15469, 67351, 291481, 1255615, 5388781, 23057719, 98412925, 419147611, 1781938861, 7563704443, 32061034765, 135735002647, 574031742241, 2425263118615, 10237702739293, 43181995295227, 182007967348273

Offset: 0

Author

Jonathan Vos Post, Dec 10 2010

Keywords

• nonn
• walk

Comments

Number of self-avoiding walks of no more than n-steps on hexagonal [ =triangular ] lattice.

Crossrefs

Cf. A001334.

Formula

a(n) = Sum_{i=0..n} A001334(i).

Extensions

a(19) corrected by Georg Fischer, Aug 29 2020