A327857 - OEIS

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A327857

a(n) = A091255(1+A059905(n), 1+A059906(n)).

1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 2, 3, 3, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 3, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 4, 5, 3, 3, 6, 1, 1, 1, 2, 1, 1, 1, 2, 7, 1, 1, 8, 1, 1, 1, 2, 1, 1, 1, 2, 3, 3, 1, 2, 1, 3, 1, 4, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 4, 3, 5, 3, 6, 1, 3, 1, 6, 7, 1

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OFFSET

0,4

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..16384

Index entries for sequences operating on polynomials in ring GF(2)[X]

FORMULA

a(n) = A091255(1+A059905(n), 1+A059906(n)) = A091255(1+A059906(n), 1+A059905(n)).

PROG

(PARI)

A059905(n) = { my(t=1, s=0); while(n>0, s += (n%2)*t; n \= 4; t *= 2); (s); };

A059906(n) = { my(t=1, s=0); while(n>0, s += ((n%4)>=2)*t; n \= 4; t *= 2); (s); };