A272464 -id:A272464 - cp's OEIS frontend

A272465 Indices n such that A272464(n)=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

Max Barrentine, Apr 30 2016

nonn

It appears that a(n)/a(n-1) converges to 3/2.

Rémy Sigrist, C program for A272465

Cf. A272464.

C
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// See Links section.
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More terms from Rémy Sigrist, Jul 02 2021

A272466 Numbers missing from A272464.

Original entry on oeis.org

6, 9, 12, 14, 16, 20, 22, 28, 30, 33, 35, 36, 49, 50, 54, 58, 64, 66, 72, 74, 75, 77, 78, 80, 86, 87, 88, 90, 94, 96, 102, 110, 116, 118, 120, 121, 124, 126, 130, 132, 141, 143, 146, 150, 158, 161, 162, 168, 169, 172, 176, 180, 182, 183, 187, 189, 191, 192

Offset: 1

Max Barrentine, Apr 30 2016

nonn

Does a(n)/n converge to 2? Is it ever less than 2?

Max Barrentine, Table of n, a(n) for n = 1..629

Cf. A272464.

cp's OEIS Frontend

A272465 Indices n such that A272464(n)=1.

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