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 A232805 a(n) is the length of the n-th chunk of nonprimes in this sequence, the chunks being separated by primes; lexicographically least such sequence starting with a prime. 2
 2, 1, 4, 3, 6, 5, 8, 9, 10, 12, 7, 14, 15, 16, 11, 18, 20, 21, 22, 24, 25, 13, 26, 27, 28, 30, 32, 17, 33, 34, 35, 36, 38, 39, 40, 42, 19, 44, 45, 46, 48, 49, 50, 51, 52, 54, 23, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 29, 68, 69, 70, 72, 74, 75, 76, 77 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Another self-describing sequence invented by E. Angelini. Conjectured to be a permutation of the positive integers. The position of the primes are given in A232807. See A232846 for the lexicographically smaller variant starting with a nonprime. LINKS E. Angelini, Self-describing chunks of primes, SeqFan list, Nov 30 2013 PROG (PARI) a=[]; i=p=c=0; while(#a<99, a=concat(a, p=nextprime(p+1)); for(j=1, a[i++], while(isprime(c++), ); a=concat(a, c)); a CROSSREFS Cf. A232807, A232846. Sequence in context: A282651 A282665 A320283 * A073672 A306230 A071065 Adjacent sequences:  A232802 A232803 A232804 * A232806 A232807 A232808 KEYWORD nonn AUTHOR M. F. Hasler and Eric Angelini, Nov 30 2013 STATUS approved

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Last modified January 25 02:32 EST 2021. Contains 340414 sequences. (Running on oeis4.)