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A339900
Lexicographically earliest permutation of odd primes such that A007814(a(n)-1) = 1+A007814(n), where A007814 gives the 2-adic valuation of n.
1
3, 5, 7, 41, 11, 13, 19, 17, 23, 29, 31, 73, 43, 37, 47, 97, 59, 53, 67, 89, 71, 61, 79, 113, 83, 101, 103, 137, 107, 109, 127, 193, 131, 149, 139, 233, 151, 157, 163, 241, 167, 173, 179, 281, 191, 181, 199, 353, 211, 197, 223, 313, 227, 229, 239, 337, 251, 269, 263, 409, 271, 277, 283, 641, 307, 293, 311, 457, 331
OFFSET
1,1
LINKS
PROG
(PARI) A339900(n) = { my(lev=1+valuation(n, 2), k=(1+(n>>(lev-1)))/2); forprime(p=3, , if(valuation(p-1, 2)==lev, k--; if(!k, return(p)))); };
CROSSREFS
Cf. A002145 (odd bisection), A007521 (quadrisection starting from 5), A105126, A105127, A105128, A105129, A105130, A105131, A105132.
Cf. also A108546, A111745.
Sequence in context: A234569 A037287 A163797 * A130536 A261511 A146972
KEYWORD
nonn,look
AUTHOR
Antti Karttunen, Dec 25 2020
STATUS
approved