

A032103


Number of dyslexic identity planted planar trees with n+1 nodes and leaves of 2 colors.


1



2, 2, 3, 9, 32, 125, 489, 1971, 8057, 33582, 141854, 606967, 2623678, 11444588, 50306835, 222638649, 991173730, 4435974275, 19946529375, 90069370028, 408261634445, 1856940442884, 8472695323318
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OFFSET

1,1


LINKS



FORMULA

Shifts left under "BHK" (reversible, identity, unlabeled) transform


PROG

(PARI)
BHK(p)={p + (1/(1p)  (1+p)/subst(1p, x, x^2))/2}
seq(n)={my(p=O(1)); for(i=1, n, p=2+BHK(x*p)); Vec(p)} \\ Andrew Howroyd, Aug 30 2018


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



