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Triangle of single-edge stars with n edges by cyclotomic index.
1

%I #10 Nov 26 2020 01:22:34

%S 1,1,1,1,1,2,1,1,3,3,1,4,9,2,1,6,20,14,1,1,7,40,50,12,1

%N Triangle of single-edge stars with n edges by cyclotomic index.

%C The rows appear to be the same as in A339070 but reflected and with all 0's removed. - _Andrew Howroyd_, Nov 25 2020

%H George A. Baker Jr. and John M. Kincaid, <a href="https://doi.org/10.1007/BF01012818">The continuous-spin Ising model, g0:phi4:d field theory and the renormalization group</a>. J. Statist. Phys. 24 (1981), no. 3, 469-528.

%e Triangle begins:

%e 3 | 1;

%e 4 | 1;

%e 5 | 1, 1;

%e 6 | 1, 2, 1;

%e 7 | 1, 3, 3;

%e 8 | 1, 4, 9, 2;

%e 9 | 1, 6, 20, 14, 1;

%e 10 | 1, 7, 40, 50, 12, 1;

%e ...

%Y Row sums give A010355.

%Y Cf. A010358, A339070.

%K nonn,tabf

%O 3,6

%A _N. J. A. Sloane_

%E Offset corrected by _Andrew Howroyd_, Nov 25 2020