A233282 Positions of records in partial LCM-products (A233287) of Fibonacci entry points (A001177).

1, 2, 3, 5, 7, 13, 17, 25, 37, 43, 47, 53, 59, 67, 73, 79, 97, 125, 127, 137, 157, 163, 179, 193, 243, 257, 269, 277, 283, 311, 313, 317, 337, 353, 359, 397, 439, 457, 479, 487, 499, 509, 523, 547, 563, 577, 613, 617, 625, 653, 673, 677, 719, 729, 733, 757, 787

Offset: 1

Author

Antti Karttunen, Dec 13 2013

Keywords

• nonn

Comments

Seems also to be positions of records for lcm_{i=1..n} A001175(i).

After 1, only primes and prime powers seem to occur.

Positions where a(n) is not a prime are 1, 8, 18, 25, 49, 54, 65, 75, 102, 111, 136, 164, 237, ...

Links

• Antti Karttunen, Table of n, a(n) for n = 1..338

Crossrefs

A233283 gives the corresponding record values.

Cf. A001175, A001176, A001177, A233281, A233287.