A249439 Record values in A249442.

0, 1, 3, 5, 7, 8, 21, 24, 32, 36, 40, 45, 48, 64, 91, 94

Offset: 1

Author

Antti Karttunen and Vladimir Shevelev, Nov 04 2014

Keywords

• nonn
• more

Crossrefs

A249440 gives the positions where these values occur in A249442 for the first time.

Programs

PARI

A249442(n) = { for(k=0,n\2,if(0==moebius(binomial(n,k)),return(k))); return(0); }
prevmax = -1; i = 0; for(n=0, 123456789, if((k=A249442(n)) > prevmax, prevmax = k; i++; write("b249439.txt", i, " ", k); write("b249440.txt", i, " ", n)));
\\ Compute both A249439 and A249440 at the same time. - Antti Karttunen, Nov 04 2014

Formula

a(n) = A249442(A249440(n)).