a(n) = smallest composite number > a(n-1) that contains the n-th prime as a substring.
12, 30, 35, 57, 110, 130, 170, 190, 230, 290, 310, 370, 410, 430, 447, 453, 459, 561
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
16 seqfan posts
Tue May 25 01:32:46 CEST 2010 [seqfan] Smallest number that contains the first n semiprimes as substrings
Sun May 16 17:09:31 CEST 2010 [seqfan] Re: Primes embedded
Sun May 16 16:28:55 CEST 2010 [seqfan] Re: Primes embedded
Sun May 16 06:47:46 CEST 2010 [seqfan] Re: Primes embedded
Sun May 16 05:55:26 CEST 2010 [seqfan] Re: Primes embedded
Sun May 16 05:13:36 CEST 2010 [seqfan] Re: what defines the digits of A144565
Sun May 16 05:13:36 CEST 2010 [seqfan] Re: what defines the digits of A144565
Sat May 1 18:06:45 CEST 2010 [seqfan] Re: what defines the digits of A144565
Sat May 1 17:21:26 CEST 2010 [seqfan] Re: what defines the digits of A144565
Sat May 1 16:59:01 CEST 2010 [seqfan] what defines the digits of A144565
Tue Mar 30 20:38:01 CEST 2010 [seqfan] Re: mess and confusion
Mon Mar 29 19:38:20 CEST 2010 [seqfan] Re: Help me understand these sequences
Mon Mar 29 17:53:45 CEST 2010 [seqfan] Re: Help me understand these sequences
Mon Mar 29 17:25:19 CEST 2010 [seqfan] Re: Help me understand these sequences
Mon Mar 29 16:09:12 CEST 2010 [seqfan] Re: Help me understand these sequences
Mon Mar 29 14:59:06 CEST 2010 [seqfan] Help me understand these sequences
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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