A010356 - OEIS

A010356

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

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

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OFFSET

3,6

COMMENTS

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

LINKS

George A. Baker Jr. and John M. Kincaid, The continuous-spin Ising model, g0:phi4:d field theory and the renormalization group. J. Statist. Phys. 24 (1981), no. 3, 469-528.

EXAMPLE

Triangle begins:

3 | 1;

4 | 1;

5 | 1, 1;

6 | 1, 2, 1;

7 | 1, 3, 3;

8 | 1, 4, 9, 2;

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

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

...

CROSSREFS

Row sums give A010355.

KEYWORD

nonn,tabf

AUTHOR

EXTENSIONS

Offset corrected by Andrew Howroyd, Nov 25 2020

STATUS

approved