A328462 Numbers obtained by reinterpreting base-2 representation of odd numbers in primorial base.

1, 3, 7, 9, 31, 33, 37, 39, 211, 213, 217, 219, 241, 243, 247, 249, 2311, 2313, 2317, 2319, 2341, 2343, 2347, 2349, 2521, 2523, 2527, 2529, 2551, 2553, 2557, 2559, 30031, 30033, 30037, 30039, 30061, 30063, 30067, 30069, 30241, 30243, 30247, 30249, 30271, 30273, 30277, 30279, 32341, 32343, 32347, 32349, 32371, 32373

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..8192

Index entries for sequences related to binary expansion of n

Index entries for sequences related to primorial base

Prog

(PARI)
A276156(n) = { my(p=2, pr=1, s=0); while(n, if(n%2, s += pr); n >>= 1; pr *= p; p = nextprime(1+p)); (s); };
A328462(n) = A276156(n+n-1);

Crossrefs

Cf. A002110, A007814.

Row 1 of A328464, odd bisection of A276156 and of A328461.

Cf. A143293 (subsequence).

Sequence in context: A339614 A246659 A072087 * A328233 A031161 A031882

Adjacent sequences: A328459 A328460 A328461 * A328463 A328464 A328465

Keyword

nonn,base

Author

Antti Karttunen, Oct 16 2019

Status

approved