A382271 Smallest k such that A073734(k) = 2^n, where A073734 is the GCD of consecutive terms of the EKG sequence A064413.

2, 3, 8, 17, 3070, 20143, 46660, 187759, 1339550, 2692614, 81281233, 61760615, 98845851

Offset

0,1

Comments

a(13) > 1.045*10^9.

Links

Table of n, a(n) for n=0..12.

Example

a(3) = 17 as A064413(17) = 16, A064413(16) = 24, and GCD(16,24) = 8 = 2^3. No earlier pair of consecutive terms in A064413 has a GCD of 8.

Crossrefs

Cf. A064413, A073734, A382222, A064740, A073735.

Sequence in context: A218090 A101182 A009207 * A290878 A096254 A091765

Adjacent sequences: A382268 A382269 A382270 * A382272 A382273 A382274

Keyword

nonn,more

Author

Scott R. Shannon and Michael De Vlieger, Mar 20 2025

Status

approved