Search: a245102 -id:a245102
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A034781
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Triangle of number of rooted trees with n >= 2 nodes and height h >= 1.
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+10
48
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1, 1, 1, 1, 2, 1, 1, 4, 3, 1, 1, 6, 8, 4, 1, 1, 10, 18, 13, 5, 1, 1, 14, 38, 36, 19, 6, 1, 1, 21, 76, 93, 61, 26, 7, 1, 1, 29, 147, 225, 180, 94, 34, 8, 1, 1, 41, 277, 528, 498, 308, 136, 43, 9, 1, 1, 55, 509, 1198, 1323, 941, 487, 188, 53, 10, 1
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A245103
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Number of (2n+1)-node rooted trees of height n.
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+10
3
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1, 1, 4, 18, 93, 498, 2744, 15349, 86802, 494769, 2837412, 16351036, 94599339, 549118128, 3196397701, 18651028188, 109057492901, 638863803720, 3748605725140, 22027421351633, 129606128716906, 763484925360476, 4502370205339221, 26577052185126059
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A339440
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Number of linear forests with n rooted trees and 2*n-1 nodes.
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+10
3
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0, 1, 2, 9, 44, 230, 1236, 6790, 37832, 213057, 1209660, 6912367, 39705516, 229055918, 1326168018, 7701734250, 44846271632, 261735599172, 1530650010312, 8967361033572, 52619233554120, 309203221308702, 1819290987055630, 10716835948503349, 63196331969007264
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