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Search: id:A130224
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A130224 a(1) = 1; a(n) = a(n-1) + (number of times the digit 1 has appeared in the sequence so far). +0
1
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 19, 24, 29, 34, 39, 44, 49, 54, 59, 64, 69, 74, 79, 84, 89, 94, 99, 104, 110, 118, 128, 139, 151, 165, 180, 196, 213, 231, 250, 269, 288, 307, 326, 345, 364, 383, 402, 421, 441, 462 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A133184 A102576 A101170 this_sequence A017903 A005711 A059765

Adjacent sequences: A130221 A130222 A130223 this_sequence A130225 A130226 A130227

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini (eric.angelini(AT)kntv.be), Aug 05 2007

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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