A057931 Positions at which powers of 2 occur in A057929. (Or -1 if it does not occur.)

-1, 0, -1, 2, 5, 11, 23, 32, 47, 83, 131, 239, 311, 527, 731, 965, 1703, 2675, 3827, 6359, 9659, 14555, 23087, 33041, 45995, 77519, 120467, 177635, 252713, 405317, 554033, 795827, 1335083, 1819523, 2491229, 4183463, 5920211, 8051987, 12530963, 20132057

Offset

0,4

Links

Table of n, a(n) for n=0..39.

Crossrefs

Cf. A057929, A057930.

Sequence in context: A038924 A278696 A226843 * A039693 A294938 A062475

Adjacent sequences: A057928 A057929 A057930 * A057932 A057933 A057934

Keyword

easy,sign

Author

Larry Reeves (larryr(AT)acm.org), Oct 03 2000

Extensions

More terms from Sean A. Irvine, Jul 12 2022

Status

approved