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 A203591 Numbers such that each digit is the sum of two or more other digits. 2
 10001, 10010, 10100, 11000, 20002, 20020, 20200, 22000, 30003, 30030, 30300, 33000, 40004, 40040, 40400, 44000, 50005, 50050, 50500, 55000, 60006, 60060, 60600, 66000, 70007, 70070, 70700, 77000, 80008, 80080, 80800, 88000, 90009, 90090, 90900 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS E. Angelini calls these "W numbers", see the link for more information. LINKS Table of n, a(n) for n=1..35. E. Angelini, W and M numbers, January 2012. E. Angelini, W and M numbers [Cached copy, with permission] PROG (PARI) is_W(n)={ my(c=vector(10), OK(n, c) = c[2] >= n & return(1); forstep( d=n-1, 2, -1, forstep( m=min(c[d+1], n\d), 1, -1, OK(n-m*d, c) & return(1)))); for( i=1, #n=Vecsmall( Str( n )), c[n[i]-47]++ ); c[1]<3 & return; c[2]==1 & return; for( j=3, 10, c[j] != 1 | OK( j-1, c ) | return); 1} \\ M. F. Hasler, Jan 03 2012 CROSSREFS Cf. A203592 for the primes in this sequence. Sequence in context: A113758 A273531 A291312 * A115850 A082567 A360574 Adjacent sequences: A203588 A203589 A203590 * A203592 A203593 A203594 KEYWORD nonn,base AUTHOR M. F. Hasler, Jan 03 2012 STATUS approved

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Last modified June 2 22:56 EDT 2023. Contains 363102 sequences. (Running on oeis4.)