[go: up one dir, main page]

login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A272465
Indices n such that A272464(n)=1
1
1, 2, 4, 7, 12, 19, 29, 43, 64, 95, 142, 211, 317, 480, 726, 1096, 1644, 2458, 3669, 5480, 8204, 12327, 18628, 28284, 43141, 66067, 101609, 156823, 242640, 376282, 584667, 910022, 1418818, 2214963, 3461469, 5414729, 8477946, 13286504, 20840758, 32716407, 51395904
OFFSET
1,2
COMMENTS
It appears that a(n)/a(n-1) converges to 3/2.
PROG
(C) See Links section.
CROSSREFS
Cf. A272464.
Sequence in context: A363276 A035301 A035297 * A153252 A079719 A300829
KEYWORD
nonn
AUTHOR
Max Barrentine, Apr 30 2016
EXTENSIONS
More terms from Rémy Sigrist, Jul 02 2021
STATUS
approved