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 A332460 a(n) = A005940(1+A065621(A156552(n))), with a(1) = 1. 2
 1, 2, 3, 8, 5, 18, 7, 12, 27, 50, 11, 32, 13, 98, 75, 20, 17, 30, 19, 72, 147, 242, 23, 108, 125, 338, 45, 200, 29, 162, 31, 28, 363, 578, 245, 48, 37, 722, 507, 300, 41, 450, 43, 392, 243, 1058, 47, 500, 343, 70, 867, 968, 53, 42, 605, 588, 1083, 1682, 59, 128, 61, 1922, 675, 44, 845, 882, 67, 1352, 1587, 1250, 71, 180, 73, 2738, 105 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Antti Karttunen, Table of n, a(n) for n = 1..16384 FORMULA a(1) = 1, and for n > 1, a(n) = A005940(1+A065621(A156552(n))). a(p) = p for all primes p. a(A003961(n)) = A003961(a(n)). A008836(a(n)) = -1 for all n >= 2. PROG (PARI) A005940(n) = { my(p=2, t=1); n--; until(!n\=2, if((n%2), (t*=p), p=nextprime(p+1))); t }; \\ From A005940 A065621(n) = bitxor(n-1, n+n-1); A156552(n) = {my(f = factor(n), p2 = 1, res = 0); for(i = 1, #f~, p = 1 << (primepi(f[i, 1]) - 1); res += (p * p2 * (2^(f[i, 2]) - 1)); p2 <<= f[i, 2]); res}; \\ From A156552 A332460(n) = A005940(1+A065621(A156552(n))); CROSSREFS Cf. A003961, A005940, A008836, A010052, A065621, A156552, A332449, A332450. Cf. A332451 for a complementary sequence (after its initial 1). Permutation of A026424 after the initial 1. Sequence in context: A272878 A094181 A004730 * A168014 A050369 A070935 Adjacent sequences:  A332457 A332458 A332459 * A332461 A332462 A332463 KEYWORD nonn AUTHOR Antti Karttunen, Feb 22 2020 STATUS approved

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Last modified May 29 20:42 EDT 2020. Contains 334710 sequences. (Running on oeis4.)